Problem 1
The circuit is in the steady state mode before the switch closes at t=0; Determine the current i(t) through terminal a and b for t>0.  
Transient Circuits >
First Order >
RC Initial Conditions
Keywords:
Length: 7:12
Date Added: 20070523 19:24:04
Filename: firstOrder_rcInitialCond_ex1
ID: 1

Problem 1
Assume the switch has been in position (a) for a long time and at time t=0 it moves to position (b). Find the expression for the capacitor voltage for t > 0.  
Transient Circuits >
First Order >
RC Natural Response
Keywords:
Length: 4:50
Date Added: 20060829 12:31:15
Filename: firstOrder_rcNatural_ex1
ID: 24

Problem 2
The switch has been closed for a long time and opens at t=0. Determine an expression for the current through the 4kOhm resistor and capacitor.  
Transient Circuits >
First Order >
RC Natural Response
Keywords:
Length: 5:01
Date Added: 20070523 19:24:04
Filename: firstOrder_rcNatural_ex2
ID: 25

Problem 1
At t=0 the switch is flipped to position (b) after being in position (a) for a long time. After 1ms it moves back to position (a). Find the capacitor voltage as a function of time t.  
Transient Circuits >
First Order >
RC Sequential Response
Keywords:
Length: 7:54
Date Added: 20070523 19:24:04
Filename: firstOrder_rcSequential_ex1
ID: 26

Problem 1
At t=0 the switch closes. Find an expression for the capacitor voltage.  
Transient Circuits >
First Order >
RC Step Response
Keywords:
Length: 6:04
Date Added: 20070523 19:24:04
Filename: firstOrder_rcStep_ex1
ID: 27

Problem 2
Assume the switch has been open for a long time and closes at t=0. Find the resulting voltage across the capacitor and the current through the resistor.  
Transient Circuits >
First Order >
RC Step Response
Keywords:
Length: 7:22
Date Added: 20070523 19:24:04
Filename: firstOrder_rcStep_ex2
ID: 28

Problem 3
Assume the switch in the circuit has been open for a long time, find the expression for the capacitor voltage v_{C} after the switch closes. statement_diagram:screenshot.gif 
Transient Circuits >
First Order >
RC Step Response
Keywords:
Length: 4:13
Date Added: 20070523 19:24:04
Filename: firstOrder_rcStep_ex3
ID: 29

Problem 1
The switch has been in position (a) for a long time before it goes to position (b). Find the values for the inductor voltage and current immediately after the switch closes and as time approaches infinity.  
Transient Circuits >
First Order >
RL Initial Conditions
Keywords:
Length: 5:52
Date Added: 20070523 19:24:04
Filename: firstOrder_rlInitialCond_ex1
ID: 31

Problem 2
Assume the switch in the circuit below has been open for a long time, find the expression for the inductor current i_{L}(t) after the switch closes.  
Transient Circuits >
First Order >
RL Initial Conditions
Keywords:
Length: 5:23
Date Added: 20070523 19:24:04
Filename: firstOrder_rlInitialCond_ex2
ID: 32

Problem 1
The two switches in the circuit have been closed for a long time. At t=0 Switch 1 opens and after 1ms Switch 2 opens. Find the inductor current i_{L}(t) for t>0.  
Transient Circuits >
First Order >
RL Sequential Response
Keywords:
Length: 8:58
Date Added: 20070523 19:24:04
Filename: firstOrder_rlSequential_ex1
ID: 33

Problem 1
Assume the switch in the circuit below has been closed for a long time, find the expression for the inductor current i_{L}(t) after the switch opens.  
Transient Circuits >
First Order >
RL Natural Response
Keywords:
Length: 7:24
Date Added: 20070523 19:24:04
Filename: firstOrder_rlNatural_ex1
ID: 35

Problem 2
Assume the switch in the circuit below has been closed for a long time, find the expression for the inductor current i_{L}(t) after the switch opens.  
Transient Circuits >
First Order >
RL Natural Response
Keywords:
Length: 6:44
Date Added: 20070523 19:24:04
Filename: firstOrder_rlNatural_ex2
ID: 36

Problem 1
Consider the RL circuit in which the switch closes at t=0. Assume the initial current through the inductor is I_{0}. Our goal is to find the inductor current i_{L}(t) for t>0.  
Transient Circuits >
First Order >
RL Step Response
Keywords:
Length: 6:17
Date Added: 20070523 19:24:04
Filename: firstOrder_rlStep_ex1
ID: 37

Problem 2
The switch in the circuit has been open for a long time (steadystate conditions apply) and closes at t=0. Determine current through the inductor i_{L}(t) for t>0.  
Transient Circuits >
First Order >
RL Step Response
Keywords:
Length: 7:47
Date Added: 20070523 19:24:04
Filename: firstOrder_rlStep_ex2
ID: 38

Problem 1
For the circuit shown below, the switch has been opened for a long time and it is closes at t=0. Determine the initial values of the inductor and capacitor voltages and currents: i_{L}(0^{+}), v_{L}(0^{+}), i_{C}(0^{+}), and v_{C}(0^{+}).  
Transient Circuits >
Second Order (RLC) >
Initial Conditions
Keywords:
Length: 6:50
Date Added: 20070523 19:24:04
Filename: rlc_InitialConds_ex1
ID: 13

Problem 1
Determine the initial value of v_{R}(t) and dv_{R}(t)/dt, and the final value of v_{R}(t).  
Transient Circuits >
Second Order (RLC) >
Initial Value and Final Value
Keywords:
Length: 6:18
Date Added: 20070523 19:24:04
Filename: rlc_initfinal_ex1
ID: 34

Problem 2
Determine the initial value of v_{C}(t) and dv_{C}(t)/dt, and the final value of v_{C}(t).  
Transient Circuits >
Second Order (RLC) >
Initial Value and Final Value
Keywords:
Length: 3:25
Date Added: 20070523 19:24:04
Filename: rlc_initfinal_ex2
ID: 251

Problem 3
For both the inductor current and voltage, determine their initial values, the initial values of their derivatives, and their final values. The capacitor has 9 J of stored energy before the switch closes.  
Transient Circuits >
Second Order (RLC) >
Initial Value and Final Value
Keywords:
Length: 7:42
Date Added: 20070523 19:24:04
Filename: rlc_initfinal_ex3
ID: 252

Problem 1
For each circuit, determine the qualitative form of the response v_{c}(t) as being either overdamped, underdamped, or critically damped.  
Transient Circuits >
Second Order (RLC) >
Response Type
Keywords:
Length: 3:30
Date Added: 20070523 19:24:04
Filename: rlc_responsetype_1
ID: 241

Problem 2
Determine the qualitative form of the response v_{C}(t) as being either overdamped, underdamped, or critically damped.  
Transient Circuits >
Second Order (RLC) >
Response Type
Keywords:
Length: 2:27
Date Added: 20070523 19:24:04
Filename: rlc_responsetype_2
ID: 242

Problem 3
Determine the qualitative form of the response i_{L}(t) as being either overdamped, underdamped, or critically damped.  
Transient Circuits >
Second Order (RLC) >
Response Type
Keywords:
Length: 1:47
Date Added: 20070523 19:24:04
Filename: rlc_responsetype_3
ID: 243

Problem 4
Determine the qualitative form of the response i_{L}(t) as being either overdamped, underdamped, or critically damped.  
Transient Circuits >
Second Order (RLC) >
Response Type
Keywords:
Length: 2:19
Date Added: 20070523 19:24:04
Filename: rlc_responsetype_4
ID: 244

Problem 5
What value of R will make this circuitry critically damped?  
Transient Circuits >
Second Order (RLC) >
Response Type
Keywords:
Length: 3:16
Date Added: 20070523 19:24:04
Filename: rlc_responsetype_5
ID: 245

Problem 1
Plot the inductor current i_{L}(t) and inductor voltage v_{L}(t) for time t = 0.1 seconds to t = 3 seconds. Confirm your results using a circuit simulator.  
Transient Circuits >
Second Order (RLC) >
Step Response
Keywords:
Length: 11:57
Date Added: 20070523 19:24:04
Filename: rlc_stepresponse_1
ID: 253

Problem 1
Which devices are labeled according to the passive sign convention (PSC)?  
DC Circuits >
Circuit Variables >
Passive Sign Convention
Keywords:
Length: 1:40
Date Added: 20060829 12:31:10
Filename: cktvars_psc_ex1
ID: 2

Problem 2
For each device, state whether Passive Sign Convention (PSC) or Active Sign Convention (ASC) is used for the defined current and voltage. Then determine whether the device is absorbing or delivering power.  
DC Circuits >
Circuit Variables >
Passive Sign Convention
Keywords:
Length: 3:45
Date Added: 20070523 19:24:04
Filename: cktvars_psc_ex2
ID: 46

Problem 3
For labeled currents, draw an arrow to show the direction of positive current. For labeled voltages, circle the node that is at the highest potential.  
DC Circuits >
Circuit Variables >
Passive Sign Convention
Keywords:
Length: 1:41
Date Added: 20070523 19:24:04
Filename: cktvars_psc_ex3
ID: 47

Problem 1
(a) Suppose that a 12volt automobile battery with 100 amphour capacity is fully charged. How much energy (in joules) is stored in the battery? (b) Next, suppose that the battery needs to supply the automobile's emergency flashers while the driver seeks roadside assistance. The flashers consume 50 watts of power when on, and the flashers are active for a half second out of every two seconds. Assuming that the battery can maintain its rated output voltage until completely depleted of stored energy, how long (in hours) will the battery be able to operate the flashers? 
DC Circuits >
Circuit Variables >
Energy
Keywords:
Length: 5:22
Date Added: 20070523 19:24:04
Filename: cktvars_energy_ex1
ID: 40

Problem 1
A "night light" illuminates dark hallways and children's rooms at night. Older night lights use incandescent bulbs (tungsten filament in an evacuated glass envelope), while newer night lights use lightemitting diodes (LEDs). The older style night light bulb requires 4 W of power to operate, while a newer LED night light might require about 0.2 W of power. According to the U.S. Department of Energy, a kilowatthour costs 9.85 cents for the residential customers, on average (http://www.eia.doe.gov/cneaf/electricity/epm/table5_6_b.html). During the course of a year, what is the total cost saved by using an LEDbased night light instead of the older style night light? 
DC Circuits >
Circuit Variables >
SI Units
Keywords:
Length: 4:20
Date Added: 20070523 19:24:04
Filename: cktvars_units_ex1
ID: 246

Problem 3
As of 1983, the definition of a "meter" is based on the speed of light, specifically, the distance that light travels in a vacuum during the time interval 299,792,458^{1} seconds. Electrical signals moving in a cable (for example, the coaxial cable that connects your television to the cable jack in the wall) travel at approximately 70% of the speed of light. Speaking of television, a highdefinition (HD) receiver can update its display 60 times per second, where each display frame contains 1280x720 pixels. So: How far can the television signal travel in a coaxial cable during the time that an HD receiver is drawing a new pixel on the screen? 
DC Circuits >
Circuit Variables >
SI Units
Keywords:
Length: 3:15
Date Added: 20070523 19:24:04
Filename: cktvars_units_ex3
ID: 247

Problem 4
Beginning in Beijing, China, you need to travel about 11,000 kilometers to reach New York City. Communication satellite signals traveling between these two cities move at close to the speed of light (3x10^{8} meters per second). The eye blink duration of a human is approximately 300 milliseconds. So, is it possible for a communication signal to jump from Beijing to New York in the "blink of an eye?" 
DC Circuits >
Circuit Variables >
SI Units
Keywords:
Length: 2:19
Date Added: 20070523 19:24:04
Filename: cktvars_units_ex4
ID: 248

Problem 5
How should the value of the variable voltage source V_{x} be adjusted to cause the voltage at node M to be zero?  
DC Circuits >
Nodal Analysis >
Grounded Voltage Sources
Keywords:
Length: 3:21
Date Added: 20070523 19:24:04
Filename: nodal_gndvs_5
ID: 3

Problem 4
Find the value of R that will make V_{C} = 8 volts. For this value of R, find V_{B} and V_{A}.  
DC Circuits >
Nodal Analysis >
Grounded Voltage Sources
Keywords:
Length: 5:04
Date Added: 20070523 19:24:04
Filename: nodal_gndvs_4
ID: 4

Problem 3
Find the indicated currents; use the node voltage method first.  
DC Circuits >
Nodal Analysis >
Grounded Voltage Sources
Keywords:
Length: 5:31
Date Added: 20070523 19:24:04
Filename: nodal_gndvs_3
ID: 6

Problem 2
Find all the node voltages in the circuit.  
DC Circuits >
Nodal Analysis >
Grounded Voltage Sources
Keywords:
Length: 4:42
Date Added: 20070523 19:24:04
Filename: nodal_gndvs_2
ID: 11

Problem 1
Find the three indicated node voltages using the node voltage method.  
DC Circuits >
Nodal Analysis >
Grounded Voltage Sources
Keywords:
Length: 5:19
Date Added: 20070523 19:24:04
Filename: nodal_gndvs_1
ID: 240

Problem 3
Determine which sources are delivering power and which sources are absorbing power.  
DC Circuits >
Nodal Analysis >
Independent Current Sources
Keywords:
Length: 8:11
Date Added: 20070523 19:24:04
Filename: nodal_indcs_3
ID: 7

Problem 4
Find the three indicated node voltages using the node voltage method.  
DC Circuits >
Nodal Analysis >
Independent Current Sources
Keywords:
Length: 3:59
Date Added: 20070523 19:24:04
Filename: nodal_indcs_4
ID: 12

Problem 1
Using nodal analysis, find the power delivered or absorbed by each element.  
DC Circuits >
Nodal Analysis >
Independent Current Sources
Keywords:
Length: 9:05
Date Added: 20070523 19:24:04
Filename: nodal_indcs_ex1
ID: 51

Problem 2
Use the node with the most connected branches as the ground reference, and then determine the remaining node voltages.  
DC Circuits >
Nodal Analysis >
Independent Current Sources
Keywords:
Length: 7:36
Date Added: 20060829 12:31:21
Filename: nodal_indcs_ex2
ID: 52

Problem 1
(a) Does the circuit have a "floating voltage source" which would require the "supernode" technique for nodal analysis? (b) Write the nodal equations for this circuit.  
DC Circuits >
Nodal Analysis >
Floating Voltage Sources (Supernodes)
Keywords:
Length: 3:04
Date Added: 20070523 19:24:04
Filename: nodal_super_1
ID: 9

Problem 2
Use nodal analysis to determine the resistors that absorb the most and least power.  
DC Circuits >
Nodal Analysis >
Floating Voltage Sources (Supernodes)
Keywords:
Length: 7:13
Date Added: 20070523 19:24:04
Filename: nodal_super_ex2
ID: 67

Problem 3
Write the nodal equations for this circuit.  
DC Circuits >
Nodal Analysis >
Floating Voltage Sources (Supernodes)
Keywords:
Length: 3:09
Date Added: 20070523 19:24:04
Filename: nodal_super_ex3
ID: 68

Problem 1
Determine the number of nodes in each circuit, and draw a closed contour around each node.  
DC Circuits >
Nodal Analysis >
Counting Nodes
Keywords:
Length: 3:17
Date Added: 20070523 19:24:04
Filename: nodal_count_ex1
ID: 48

Problem 2
Determine the number of nodes in this circuit, and draw a closed contour around each node.  
DC Circuits >
Nodal Analysis >
Counting Nodes
Keywords:
Length: 1:37
Date Added: 20070523 19:24:04
Filename: nodal_count_ex2
ID: 49

Problem 3
Determine the number of nodes in this circuit, and draw a closed contour around each node.  
DC Circuits >
Nodal Analysis >
Counting Nodes
Keywords:
Length: 2:32
Date Added: 20070523 19:24:04
Filename: nodal_count_ex3
ID: 50

Problem 1
Use mesh current analysis to find Vx.  
DC Circuits >
Mesh Analysis >
Dependent Sources
Keywords:
Length: 3:37
Date Added: 20070523 19:24:04
Filename: mesh_dep_ex1
ID: 5

Problem 1
Use nodal analysis to determine whether the dependent voltage source is absorbing or delivering power to the rest of the circuit.  
DC Circuits >
Nodal Analysis >
Dependent Sources
Keywords:
Length: 6:41
Date Added: 20070523 19:24:04
Filename: nodal_dep_1
ID: 8

Problem 1
Use mesh current analysis to find the voltage across each resistor.  
DC Circuits >
Mesh Analysis >
Independent Voltage Sources
Keywords:
Length: 4:18
Date Added: 20060829 12:31:12
Filename: mesh_indvs_ex1
ID: 10

Problem 2
Use mesh analysis to determine the two defined currents, Ix and Iy.  
DC Circuits >
Mesh Analysis >
Independent Voltage Sources
Keywords:
Length: 5:38
Date Added: 20070523 19:24:04
Filename: mesh_indvs_ex2
ID: 60

Problem 3
Determine all of the mesh currents in the circuit.  
DC Circuits >
Mesh Analysis >
Independent Voltage Sources
Keywords:
Length: 5:13
Date Added: 20070523 19:24:04
Filename: mesh_indvs_ex3
ID: 61

Problem 1
Determine all of the mesh currents in the circuit.  
DC Circuits >
Mesh Analysis >
Current Source in Single Mesh
Keywords:
Length: 4:29
Date Added: 20070523 19:24:04
Filename: mesh_owncs_ex1
ID: 62

Problem 2
Use mesh current analysis to find Vz.  
DC Circuits >
Mesh Analysis >
Current Source in Single Mesh
Keywords:
Length: 5:10
Date Added: 20070523 19:24:04
Filename: mesh_owncs_ex2
ID: 63

Problem 1
Use mesh current analysis to find the power associated with each voltage source.  
DC Circuits >
Mesh Analysis >
Current Source in Two Meshes (Supermeshes)
Keywords:
Length: 6:05
Date Added: 20070523 19:24:04
Filename: mesh_sharedcs_ex1
ID: 64

Problem 2
Determine each mesh current in this circuit.  
DC Circuits >
Mesh Analysis >
Current Source in Two Meshes (Supermeshes)
Keywords:
Length: 3:42
Date Added: 20070523 19:24:04
Filename: mesh_sharedcs_ex2
ID: 65

Problem 3
Use mesh analysis to find Vx and Iy.  
DC Circuits >
Mesh Analysis >
Current Source in Two Meshes (Supermeshes)
Keywords:
Length: 6:36
Date Added: 20070523 19:24:04
Filename: mesh_sharedcs_ex3
ID: 66

Problem 5
Simplify the circuit between terminals A and B to a single equivalent resistor.  
DC Circuits >
Resistive Circuits >
Equivalent Resistance
Keywords:
Length: 9:02
Date Added: 20070523 19:24:04
Filename: resistive_equivResistance_ex5
ID: 14

Problem 6
Find the source voltage across the 1 mA current source.  
DC Circuits >
Resistive Circuits >
Equivalent Resistance
Keywords:
Length: 7:33
Date Added: 20070523 19:24:04
Filename: resistive_equivResistance_ex6
ID: 18

Problem 7
Simplify the circuit between terminals a and b.  
DC Circuits >
Resistive Circuits >
Equivalent Resistance
Keywords:
Length: 5:15
Date Added: 20070523 19:24:04
Filename: resistive_equivResistance_ex7
ID: 19

Problem 1
Find the equivalent resistance at terminals a and b.  
DC Circuits >
Resistive Circuits >
Equivalent Resistance
Keywords:
Length: 3:36
Date Added: 20060829 12:31:25
Filename: resistive_equivResistance_ex1
ID: 70

Problem 2
Reduce the circuit to a single resistor at terminals a and b.  
DC Circuits >
Resistive Circuits >
Equivalent Resistance
Keywords:
Length: 3:41
Date Added: 20070523 19:24:04
Filename: resistive_equivResistance_ex2
ID: 71

Problem 3
Find the current i in the circuit.  
DC Circuits >
Resistive Circuits >
Equivalent Resistance
Keywords:
Length: 5:43
Date Added: 20070523 19:24:04
Filename: resistive_equivResistance_ex3
ID: 72

Problem 4
Obtain the equivalent resistance at terminals ab.  
DC Circuits >
Resistive Circuits >
Equivalent Resistance
Keywords:
Length: 6:08
Date Added: 20070523 19:24:04
Filename: resistive_equivResistance_ex4
ID: 73

Problem 1
Find the value of V0.  
DC Circuits >
Resistive Circuits >
Kirchhoff's Current and Voltage Laws
Keywords:
Length: 6:49
Date Added: 20060829 12:31:14
Filename: resistive_kclKvl_ex1
ID: 20

Problem 2
Find the current through the 10 kΩ resistor.  
DC Circuits >
Resistive Circuits >
Kirchhoff's Current and Voltage Laws
Keywords:
Length: 5:39
Date Added: 20070523 19:24:04
Filename: resistive_kclKvl_ex2
ID: 21

Problem 3
Find the current through the 300 Ω resistor.  
DC Circuits >
Resistive Circuits >
Kirchhoff's Current and Voltage Laws
Keywords:
Length: 8:48
Date Added: 20070523 19:24:04
Filename: resistive_kclKvl_ex3
ID: 22

Problem 4
A circuit analysis program tells us that v1 = 2V, v2 = 2V, v3 = 5V, v4 = 8V, and V5 = 5V. Test whether this is correct.  
DC Circuits >
Resistive Circuits >
Kirchhoff's Current and Voltage Laws
Keywords:
Length: 6:27
Date Added: 20070523 19:24:04
Filename: resistive_kclKvl_ex4
ID: 74

Problem 5
Find the currents i_{1}, i_{2}, and i_{3} using KCL.  
DC Circuits >
Resistive Circuits >
Kirchhoff's Current and Voltage Laws
Keywords:
Length: 5:41
Date Added: 20070523 19:24:04
Filename: resistive_kclKvl_ex5
ID: 105

Problem 1
Determine the current through each of the resistors in this circuit.  
DC Circuits >
Resistive Circuits >
Kirchhoff's Current Law
Keywords:
Length: 4:37
Date Added: 20070523 19:24:04
Filename: resistive_kcl_ex1
ID: 23

Problem 1
Find the voltage across resistor R0.  
DC Circuits >
Resistive Circuits >
Kirchhoff's Voltage Law
Keywords:
Length: 7:54
Date Added: 20070523 19:24:04
Filename: resistive_kvl_ex1
ID: 75

Problem 1
Based on the following measurements across a black box's terminals, determine what elements are inside it.  
DC Circuits >
Resistive Circuits >
Ohm's law
Keywords:
Length: 5:10
Date Added: 20070523 19:24:04
Filename: resistive_ohmLaw_ex1
ID: 76

Problem 1
Find the current i through the 7kΩ resistor using current division.  
DC Circuits >
Resistive Circuits >
Current Divider
Keywords:
Length: 5:32
Date Added: 20060829 12:31:46
Filename: resistive_currentDivider_ex1
ID: 174

Problem 2
Given that i = 6mA, v = 6V, 2i_{1} = 3i_{2}, i_{2} = 2i_{3}, v_{4}:v_{3} = 2:1, we need to specify the resistors to meet the following specification.  
DC Circuits >
Resistive Circuits >
Current Divider
Keywords:
Length: 9:22
Date Added: 20070523 19:24:04
Filename: resistive_currentDivider_ex2
ID: 175

Problem 1
Use voltage division to find the current i through the 30 kΩ resistor and the voltage v across the 6 kΩ resistor.  
DC Circuits >
Resistive Circuits >
Voltage Divider
Keywords:
Length: 6:05
Date Added: 20070523 19:24:04
Filename: resistive_viDivider_ex1
ID: 176

Problem 1
Use current division and voltage division to find the voltage vab across terminals ab.  
DC Circuits >
Resistive Circuits >
Voltage Divider
Keywords:
Length: 5:44
Date Added: 20070523 19:24:04
Filename: resistive_viDivider_ex2
ID: 177

Problem 1
Use voltage division to find the current i through the 30 kΩ resistor and the voltage v across the 6 kΩ resistor.  
DC Circuits >
Resistive Circuits >
Voltage Divider
Keywords:
Length: 8:39
Date Added: 20070523 19:24:04
Filename: resistive_voltDivider_ex1
ID: 178

Problem 1
Use the proportionality property of linear circuits to find the voltage V_{X}.  
DC Circuits >
Proportionality >
Voltage Source
Keywords:
Length: 5:38
Date Added: 20070523 19:24:04
Filename: proportionality_vs_1
ID: 15

Problem 1
Use the proportionality property of linear circuits to find the current I_{X}.  
DC Circuits >
Proportionality >
Current Source
Keywords:
Length: 3:17
Date Added: 20070523 19:24:04
Filename: proportionality_cs_1
ID: 106

Problem 2
In this problem, we’ll assume that both operational amplifiers are ideal. We want to determine the output voltage V_{O}.  
DC Circuits >
Operational Amplifiers >
Inverting
Keywords:
Length: 5:40
Date Added: 20070523 19:24:04
Filename: opAmp_inv_ex2
ID: 16

Problem 1
In this problem, we assume the operational amplifier is ideal, we are interested in the voltage across the 1kΩ resistor.  
DC Circuits >
Operational Amplifiers >
Inverting
Keywords:
Length: 5:39
Date Added: 20060829 12:31:16
Filename: opAmp_inv_ex1
ID: 30

Problem 3
Determine the output current i_{o} when v_{1} = 1V and v_{2} = 1 V  
DC Circuits >
Operational Amplifiers >
Inverting
Keywords:
Length: 7:48
Date Added: 20070523 19:24:04
Filename: opAmp_inv_ex3
ID: 179

Problem 1
We are trying to find the output voltage v_{o} of the ideal op amp circuit.  
DC Circuits >
Operational Amplifiers >
Combination
Keywords:
Length: 6:30
Date Added: 20070523 19:24:04
Filename: opAmp_combo_ex1
ID: 17

Problem 2
Calculate the current through the 20kΩ resistor.  
DC Circuits >
Operational Amplifiers >
Combination
Keywords:
Length: 5:00
Date Added: 20070523 19:24:04
Filename: opAmp_combo_ex2
ID: 108

Problem 3
Determine the current i in the op amp circuit.  
DC Circuits >
Operational Amplifiers >
Combination
Keywords:
Length: 5:40
Date Added: 20070523 19:24:04
Filename: opAmp_combo_ex3
ID: 140

Problem 4
find the output voltage v_{o} of the ideal op amp.  
DC Circuits >
Operational Amplifiers >
Combination
Keywords:
Length: 6:03
Date Added: 20070523 19:24:04
Filename: opAmp_combo_ex4
ID: 166

Problem 5
Find the output voltage v_{o} of the ideal op amp.  
DC Circuits >
Operational Amplifiers >
Combination
Keywords:
Length: 7:54
Date Added: 20070523 19:24:04
Filename: opAmp_combo_ex5
ID: 167

Problem 6
For the circuit which consists of one ideal op amp, we want to find the output voltage v_{o} of the op amp.  
DC Circuits >
Operational Amplifiers >
Combination
Keywords:
Length: 5:25
Date Added: 20070523 19:24:04
Filename: opAmp_combo_ex6
ID: 170

Problem 1
Design an op amp circuit such that v_{out} = 3v_{1}  5v_{2} + 4v_{3}. 
DC Circuits >
Operational Amplifiers >
Design
Keywords:
Length: 6:38
Date Added: 20070523 19:24:04
Filename: opAmp_design_ex1
ID: 171

Problem 1
An inverting amplifier circuit is given in figure 1. a) Assume the op amp is ideal and determine v_{o} . b) Replace the operational amplifier by the finite gain model shown in figure 2. Assuming the parameters of the op amp are R_{i} = 100kΩ, R_{o} = 100kΩ, and A = 100,000, repeat the analysis and find v_{o}.  
DC Circuits >
Operational Amplifiers >
Modeling
Keywords:
Length: 8:51
Date Added: 20070523 19:24:04
Filename: opAmp_model_ex1
ID: 172

Problem 2
An noninverting amplifier circuit is given in figure 1. a) If the load resistor R_{L} = 1kΩ, determine v_{o} assuming the op amp is ideal. Repeat the analysis for R_{L} = 100kΩ. b) Replace the operational amplifier by the finite gain model shown in figure 2. Assume the parameters of the op amp are R_{i} = 100kΩ, R_{o} = 100kΩ, and A = 100,000. Repeat the analysis of a).  
DC Circuits >
Operational Amplifiers >
Modeling
Keywords:
Length: 8:40
Date Added: 20070523 19:24:04
Filename: opAmp_model_ex2
ID: 173

Problem 2
Find the output voltage v_{o}  
DC Circuits >
Operational Amplifiers >
Summing
Keywords:
Length: 5:36
Date Added: 20070523 19:24:04
Filename: opAmp_sum_ex2
ID: 180

Problem 1
Find the output voltage v_{o}  
DC Circuits >
Operational Amplifiers >
Summing
Keywords:
Length: 5:57
Date Added: 20070523 19:24:04
Filename: opAmp_sum_ex1
ID: 207

Problem 1
Find the current through the 6kΩ resistor.  
DC Circuits >
Operational Amplifiers >
Noninverting
Keywords:
Length: 5:06
Date Added: 20070523 19:24:04
Filename: opAmp_nonInv_ex1
ID: 213

Problem 2
Calculate the output voltage v_{o}  
DC Circuits >
Operational Amplifiers >
Noninverting
Keywords:
Length: 4:37
Date Added: 20070523 19:24:04
Filename: opAmp_nonInv_ex2
ID: 214

Problem 1
Find the output voltage v_{o}  
DC Circuits >
Operational Amplifiers >
Difference
Keywords:
Length: 7:51
Date Added: 20070523 19:24:04
Filename: opAmp_diff_ex1
ID: 215

Problem 1
a) Determine the output voltage of the instrumentation amplifier when v_{1} = 0V and v_{2} = 0.1V b) Assume the input signal is distorted by noise and the input voltage becomes v_{1} = 10V and v_{2} = 10.1V Recalculate the output voltage.  
DC Circuits >
Operational Amplifiers >
Instrumentation
Keywords:
Length: 6:41
Date Added: 20070523 19:24:04
Filename: opAmp_instrument_ex1
ID: 216

Problem 1
Find the output voltage v_{o}  
DC Circuits >
Operational Amplifiers >
Cascade
Keywords:
Length: 8:11
Date Added: 20070523 19:24:04
Filename: opAmp_cascade_ex1
ID: 217

Problem 2
Find the output voltage v_{o}  
DC Circuits >
Operational Amplifiers >
Cascade
Keywords:
Length: 10:08
Date Added: 20070523 19:24:04
Filename: opAmp_cascade_ex2
ID: 250

Problem 2
Use repeated source transformations to convert this circuit into Norton form.  
DC Circuits >
Source Transformations >
Single Source
Keywords:
Length: 3:10
Date Added: 20070523 19:24:04
Filename: srcTrans_res_ex2
ID: 41

Problem 3
Use repeated source transformations to convert this circuit into Thèvenin form.  
DC Circuits >
Source Transformations >
Single Source
Keywords:
Length: 2:45
Date Added: 20070523 19:24:04
Filename: srcTrans_res_ex3
ID: 42

Problem 1
Use repeated source transformations to convert this circuit into Norton form.  
DC Circuits >
Source Transformations >
Single Source
Keywords:
Length: 2:24
Date Added: 20070523 19:24:04
Filename: srcTrans_res_ex1
ID: 254

Problem 4
Use repeated source transformations to convert this circuit into Thevenin form.  
DC Circuits >
Source Transformations >
Multiple Sources
Keywords:
Length: 3:35
Date Added: 20060829 12:31:25
Filename: srcTrans_ex4
ID: 69

Problem 5
Use repeated source transformations to convert this circuit into Thevenin form.  
DC Circuits >
Source Transformations >
Multiple Sources
Keywords:
Length: 4:53
Date Added: 20070523 19:24:04
Filename: srcTrans_ex5
ID: 77

Problem 6
Use repeated source transformations to convert this circuit into Norton form.  
DC Circuits >
Source Transformations >
Multiple Sources
Keywords:
Length: 3:55
Date Added: 20070523 19:24:04
Filename: srcTrans_ex6
ID: 78

Problem 1
Read the resistor color codes to determine their values and tolerances. Report the values using engineering prefix notation, i.e., ohms, kiloohms, or megaohms.  
DC Circuits >
Circuit Elements >
Resistor Color Codes
Keywords:
Length: 4:36
Date Added: 20060829 12:31:19
Filename: cktels_resistorCode_ex1
ID: 43

Problem 2
Find the maximum and minimum specified resistance for each resistor.  
DC Circuits >
Circuit Elements >
Resistor Color Codes
Keywords:
Length: 4:40
Date Added: 20070523 19:24:04
Filename: cktels_resistorCode_ex2
ID: 44

Problem 3
A designer of the subwoofer amplifier for a home theater audio system has produced the following list of necessary resistors for a portion of her design: 481Ω, 12.67kΩ, 34Ω, and 735.2kΩ. Determine the color code of the nearest available 5% tolerance standard resistor value for each resistor. 
DC Circuits >
Circuit Elements >
Resistor Color Codes
Keywords:
Length: 4:26
Date Added: 20070523 19:24:04
Filename: cktels_resistorCode_ex3
ID: 45

Problem 1
For each current source, draw a current label (arrow and value) pointing up or to the right that is equivalent to the indicated current.  
DC Circuits >
Circuit Elements >
Current Sources
Keywords:
Length: 1:17
Date Added: 20070523 19:24:04
Filename: cktels_cs_ex1
ID: 79

Problem 2
Which of the following circuit connections are invalid?  
DC Circuits >
Circuit Elements >
Current Sources
Keywords:
Length: 2:22
Date Added: 20070523 19:24:04
Filename: cktels_cs_ex2
ID: 80

Problem 1
For each voltage source, draw a voltage label (polarity indicators and value) with the positive indicator at the top or to the right that is equivalent to the indicated voltage.  
DC Circuits >
Circuit Elements >
Voltage Sources
Keywords:
Length: 1:25
Date Added: 20070523 19:24:04
Filename: cktels_vs_ex1
ID: 81

Problem 2
Which of the following circuit connections are invalid?  
DC Circuits >
Circuit Elements >
Voltage Sources
Keywords:
Length: 1:47
Date Added: 20070523 19:24:04
Filename: cktels_vs_ex2
ID: 85

Problem 1
For each current source, draw a current label (arrow and value) pointing up or to the right that is equivalent to the indicated content.  
DC Circuits >
Circuit Elements >
Dependent Current Sources
Keywords:
Length: 2:10
Date Added: 20070523 19:24:04
Filename: cktels_depcs_ex1
ID: 82

Problem 1
For each voltage source, draw a voltage label (polarity indicators and value) with the positive indicator at the top or to the right that is equivalent to the indicated voltage.  
DC Circuits >
Circuit Elements >
Dependent Voltage Sources
Keywords:
Length: 1:49
Date Added: 20070523 19:24:04
Filename: cktels_depvs_ex1
ID: 86

Problem 1
Three different terminal pairs are attached to an original circuit. Which terminal pair arrangement will extract the most power from the original circuit?  
DC Circuits >
Maximum Power Transfer >
Multiple Ports
Keywords:
Length: 2:41
Date Added: 20060829 12:31:22
Filename: maxpower_ex1
ID: 59

Problem 1
Two measurements are made on the same "linear mystery circuit" as shown. What would be the measured current Im if the 50ohm resistor is replaced by a short circuit?  
DC Circuits >
ThÃ¨venin Equivalents >
Black Box Terminal Behavior
Keywords:
Length: 3:40
Date Added: 20070523 19:24:04
Filename: thev_box_ex1
ID: 83

Problem 2
When the variable load resistance Rl is 1 kΩ the measured voltage Vm is 30 volts. When Rt is lowered to 10Ω the voltage drops to 3 volts. What would you expect Vm to be when the load resistance is removed?  
DC Circuits >
ThÃ¨venin Equivalents >
Black Box Terminal Behavior
Keywords:
Length: 4:06
Date Added: 20060829 12:31:28
Filename: thev_box_ex2
ID: 84

Problem 3
Consider the following experimental method to measure the ThÃ¨venin resistance of a linear circuit: (1) With the pushbutton open, measure and record Vm, (2) press the pushbutton and adjust Rvar until Vm is half the original voltage, and (3) release the pushbutton and measure Rvar. Explain why the measured resistance Rvar is actually the same as the ThÃ¨venin resistance Rt.  
DC Circuits >
ThÃ¨venin Equivalents >
Black Box Terminal Behavior
Keywords:
Length: 5:12
Date Added: 20070523 19:24:04
Filename: thev_box_ex3
ID: 87

Problem 1
Find the ThÃ¨venin equivalent circuit at the terminals ST.  
DC Circuits >
ThÃ¨venin Equivalents >
Dependent Sources Exclusively
Keywords:
Length: 5:59
Date Added: 20070523 19:24:04
Filename: thev_dep_ex1
ID: 88

Problem 2
Find the ThÃ¨venin equivalent circuit at the terminals UV.  
DC Circuits >
ThÃ¨venin Equivalents >
Dependent Sources Exclusively
Keywords:
Length: 3:17
Date Added: 20070523 19:24:04
Filename: thev_dep_ex2
ID: 89

Problem 1
Find the ThÃ¨venin equivalent at the terminals AB. Use two different methods to find the ThÃ¨venin resistance: (a) As a ratio of shortcircuit current and opencircuit voltage, and (b) as the lookback resistance.  
DC Circuits >
ThÃ¨venin Equivalents >
Independent Sources
Keywords:
Length: 5:09
Date Added: 20070523 19:24:04
Filename: thev_ind_ex1
ID: 90

Problem 2
Find the ThÃ¨venin equivalent circuit to the left of the terminals AB.  
DC Circuits >
ThÃ¨venin Equivalents >
Independent Sources
Keywords:
Length: 2:38
Date Added: 20070523 19:24:04
Filename: thev_ind_ex2
ID: 91

Problem 3
Find the ThÃ¨venin equivalent circuit at the terminals AB.  
DC Circuits >
ThÃ¨venin Equivalents >
Independent Sources
Keywords:
Length: 4:52
Date Added: 20070523 19:24:04
Filename: thev_ind_ex3
ID: 92

Problem 4
Find the ThÃ¨venin equivalent circuit at the terminals EF.  
DC Circuits >
ThÃ¨venin Equivalents >
Independent Sources
Keywords:
Length: 8:34
Date Added: 20070523 19:24:04
Filename: thev_ind_ex4
ID: 93

Problem 1
Find the ThÃ¨venin equivalent circuit at the terminals GH.  
DC Circuits >
ThÃ¨venin Equivalents >
Independent and Dependent Sources
Keywords:
Length: 5:52
Date Added: 20070523 19:24:04
Filename: thev_inddep_ex1
ID: 94

Problem 1
Given this voltage waveform applied across a 1 μF capacitor, find the current through the capacitor.  
DC Circuits >
Energy Storage Elements >
CurrentVoltage Relationship of Capacitors
Keywords:
Length: 7:44
Date Added: 20070523 19:24:04
Filename: energyStorage_capacitorVi_ex1
ID: 95

Problem 2
Given this current waveform applied to a 10μF capacitor, find the capacitor's voltage as a function of time, given that v(0) = 0 volts.  
DC Circuits >
Energy Storage Elements >
CurrentVoltage Relationship of Capacitors
Keywords:
Length: 8:38
Date Added: 20070523 19:24:04
Filename: energyStorage_capacitorVi_ex2
ID: 96

Problem 3
In the circuit below, v(t) = 10e^{1000t} V. Assume that the 10μF capacitor is fully discharged at t=0, and find v_{1}(t), v_{2}(t), i_{1}(t) and i_{2}(t).  
DC Circuits >
Energy Storage Elements >
CurrentVoltage Relationship of Capacitors
Keywords:
Length: 8:44
Date Added: 20060829 12:31:31
Filename: energyStorage_capacitorVi_ex3
ID: 97

Problem 1
The input waveform v_{i}(t) is applied to this circuit as shown. Find the output voltage v_{o}(t) and the current i_{o}(t).  
DC Circuits >
Energy Storage Elements >
Capacitors and Op Amps
Keywords:
Length: 9:59
Date Added: 20060829 12:31:31
Filename: energyStorage_capacOpAmp_ex1
ID: 98

Problem 2
Given the input voltage shown in the figure below, determine v_{o}(t). Assume the capacitor is fully discharged.  
DC Circuits >
Energy Storage Elements >
Capacitors and Op Amps
Keywords:
Length: 9:10
Date Added: 20070523 19:24:04
Filename: energyStorage_capacOpAmp_ex2
ID: 249

Problem 1
Find the equivalent capacitance across terminals a and b.  
DC Circuits >
Energy Storage Elements >
Equivalent Capacitance
Keywords:
Length: 5:26
Date Added: 20070523 19:24:04
Filename: energyStorage_equivCapac_ex1
ID: 99

Problem 2
Find the equivalent capacitance seen by the voltage source.  
DC Circuits >
Energy Storage Elements >
Equivalent Capacitance
Keywords:
Length: 5:39
Date Added: 20070523 19:24:04
Filename: energyStorage_equivCapac_ex2
ID: 100

Problem 1
Find the equivalent inductance across terminals a and b.  
DC Circuits >
Energy Storage Elements >
Equivalent Inductance
Keywords:
Length: 4:41
Date Added: 20070523 19:24:04
Filename: energyStorage_equivInduc_ex1
ID: 101

Problem 2
Given that i(t) = e^(1000t) and i1(0) = 0A, find v(t), i1(t), i2(t), and v2(t) for t>0.  
DC Circuits >
Energy Storage Elements >
Equivalent Inductance
Keywords:
Length: 10:13
Date Added: 20070523 19:24:04
Filename: energyStorage_equivInduc_ex2
ID: 102

Problem 1
Given the waveform of current through an inductor, find the voltage across the inductor as a function of time.  
DC Circuits >
Energy Storage Elements >
CurrentVoltage Relationship of Inductors
Keywords:
Length: 11:02
Date Added: 20070523 19:24:04
Filename: energyStorage_inductorVi_ex1
ID: 103

Problem 2
Given the voltage waveform applied across an inductor and that i(0) = 0, find i(t) for a 5H inductor.  
DC Circuits >
Energy Storage Elements >
CurrentVoltage Relationship of Inductors
Keywords:
Length: 8:59
Date Added: 20070523 19:24:04
Filename: energyStorage_inductorVi_ex2
ID: 104

Problem 1
Use superposition to determine the voltage V_{X}. State which source influences V_{X} the most.  
DC Circuits >
Superposition >
Two Sources
Keywords:
Length: 5:38
Date Added: 20070523 19:24:04
Filename: super_ex1
ID: 255

Problem 3
Use superposition to determine the voltage V_{X}.  
DC Circuits >
Superposition >
Two Sources
Keywords:
Length: 5:28
Date Added: 20070523 19:24:04
Filename: super_ex3
ID: 257

Problem 2
Use superposition to determine the current I. State which source influences I the most.  
DC Circuits >
Superposition >
Three Sources
Keywords:
Length: 9:04
Date Added: 20070523 19:24:04
Filename: super_ex2
ID: 256

Problem 1
problem_statement.gif
 
DC Circuits >
TwoPort Networks >
Design
Keywords:
Length: 4:17
Date Added: 20070717 09:02:09
Filename: dc_twoport_design_ex1_eng
ID: 291

Problem 1
problem_statement.gif

DC Circuits >
TwoPort Networks >
Parameter Conversions
Keywords:
Length: 7:05
Date Added: 20070717 09:02:09
Filename: dc_twoport_conversions_ex1_eng
ID: 307

Problem 1
Determine the z parameters of the twoport circuit.  
DC Circuits >
TwoPort Networks >
Impedance Parameters
Keywords:
Length: 7:32
Date Added: 20070726 13:15:56
Filename: dc_twoport_z_ex1_eng
ID: 357

Problem 2
Determine the z parameters of the twoport circuit.  
DC Circuits >
TwoPort Networks >
Impedance Parameters
Keywords:
Length: 8:14
Date Added: 20070726 13:19:14
Filename: dc_twoport_z_ex2_eng
ID: 358

Problem 3
Determine the z parameters of the twoport circuit.  
DC Circuits >
TwoPort Networks >
Impedance Parameters
Keywords:
Length: 0:00
Date Added: 20070726 13:22:18
Filename: dc_twoport_z_ex3_eng
ID: 359

Problem 4
Determine the z parameters of the twoport circuit.  
DC Circuits >
TwoPort Networks >
Impedance Parameters
Keywords:
Length: 10:05
Date Added: 20070726 13:26:00
Filename: dc_twoport_z_ex4_eng
ID: 360

Problem 5
Determine the z parameters of the twoport circuit.  
DC Circuits >
TwoPort Networks >
Impedance Parameters
Keywords:
Length: 8:08
Date Added: 20070726 13:28:55
Filename: dc_twoport_z_ex5_eng
ID: 361

Problem 1
This is a tutorial detailing how to work with complex numbers in Maple.  
Tutorials >
Complex Numbers >
Maple
Keywords:
Length: 14:03
Date Added: 20070523 19:24:04
Filename: complex_maple_ex1
ID: 53

Problem 1
This is a tutorial on working with complex numbers in Matlab.  
Tutorials >
Complex Numbers >
Matlab
Keywords:
Length: 9:42
Date Added: 20070523 19:24:04
Filename: complex_matlab_ex1
ID: 54

Problem 1
This is a tutorial introducing the concept of polar coordinates in reference to complex numbers.  
Tutorials >
Complex Numbers >
Polar Coordinates
Keywords:
Length: 13:47
Date Added: 20070523 19:24:04
Filename: complex_polar_ex1
ID: 55

Problem 2
This is a tutorial about how to perform mathematical operations on complex numbers in polar form.  
Tutorials >
Complex Numbers >
Polar Coordinates
Keywords:
Length: 6:27
Date Added: 20070523 19:24:04
Filename: complex_polar_ex2
ID: 56

Problem 1
This is a tutorial introducing the idea of complex numbers and how they're represented graphically.  
Tutorials >
Complex Numbers >
Rectangular Coordinates
Keywords:
Length: 8:17
Date Added: 20060829 12:31:22
Filename: complex_rect_ex1
ID: 57

Problem 2
This is a tutorial that shows how to perform arithmetic operations on complex numbers in the rectangular form.  
Tutorials >
Complex Numbers >
Rectangular Coordinates
Keywords:
Length: 9:24
Date Added: 20070523 19:24:04
Filename: complex_rect_ex2
ID: 58

Problem 1
Create a PSpice project  
Tutorials >
PSpice Circuit Simulator >
Create a New Project
Keywords:
Length: 1:33
Date Added: 20070523 19:24:04
Filename: pspice_projCreate_1
ID: 258

Problem 1
Analyze a simple RC circuit.  
Tutorials >
PSpice Circuit Simulator >
Transient (First Order) Circuits
Keywords:
Length: 13:51
Date Added: 20070523 19:24:04
Filename: pspice_firstOrder_1
ID: 259

Problem 1
Perform an AC Sweep on an RLC circuit.  
Tutorials >
PSpice Circuit Simulator >
AC Circuits
Keywords:
Length: 8:58
Date Added: 20070523 19:24:04
Filename: pspice_acSweep_1
ID: 261

Problem 1
Determine the equivalent impedance at the terminals AB when the circuit operates at a frequency of 50 rad/s.  
AC Circuits >
Circuit Elements >
Equivalent Impedance/Admittance
Keywords:
Length: 4:02
Date Added: 20070717 09:02:09
Filename: ac_cktels_equiv_ex1_eng
ID: 297

Problem 4
Find the equivalent admittance seen by the current source.  
AC Circuits >
Circuit Elements >
Equivalent Impedance/Admittance
Keywords:
Length: 6:52
Date Added: 20070726 07:54:05
Filename: ac_cktels_equiv_ex4_eng
ID: 313

Problem 3
State the value of the single equivalent resistor and capacitor (or inductor) seen by the source.  
AC Circuits >
Circuit Elements >
Equivalent Impedance/Admittance
Keywords:
Length: 5:58
Date Added: 20070726 07:56:10
Filename: ac_cktels_equiv_ex3_eng
ID: 314

Problem 5
Determine the equivalent admittance between the terminals GH. Work this problem completely in terms of admittance.  
AC Circuits >
Circuit Elements >
Equivalent Impedance/Admittance
Keywords:
Length: 2:35
Date Added: 20070726 08:11:06
Filename: ac_cktels_equiv_ex5_eng
ID: 315

Problem 6
Determine the equivalent impedance between the terminals G and H. To begin, convert the admittance of each element to impedance, then work the problem completely in terms of impedance.  
AC Circuits >
Circuit Elements >
Equivalent Impedance/Admittance
Keywords:
Length: 5:06
Date Added: 20070727 08:39:53
Filename: ac_cktels_equiv_ex6_eng
ID: 365

Problem 2
Determine the equivalent impedance between the terminals CD when the circuit operates at each of the following frequencies: 0 Hz (DC), 503 Hz, 5.03 kHz, 50.3 kHz, and ∞Hz (extremely high frequency).  
AC Circuits >
Circuit Elements >
Equivalent Impedance/Admittance
Keywords:
Length: 5:40
Date Added: 20070727 09:06:07
Filename: ac_cktels_equiv_ex2_eng
ID: 368

Problem 2
Match the admittance value to its corresponding circuit element.  
AC Circuits >
Circuit Elements >
Admittance
Keywords:
Length: 4:34
Date Added: 20070717 09:02:09
Filename: ac_cktels_admit_ex2_eng
ID: 296

Problem 1
Complete the table to show the admittance of each of the indicated circuit elements at various operating frequencies.  
AC Circuits >
Circuit Elements >
Admittance
Keywords:
Length: 5:16
Date Added: 20070717 09:44:42
Filename: ac_cktels_admit_ex1_eng
ID: 310

Problem 1
Complete the table to show the impedance of each of the indicated circuit elements at various operating frequencies.  
AC Circuits >
Circuit Elements >
Impedance
Keywords:
Length: 3:55
Date Added: 20070717 09:02:09
Filename: ac_cktels_imped_ex1_eng
ID: 298

Problem 2
Match the impedance value to its corresponding circuit element.  
AC Circuits >
Circuit Elements >
Impedance
Keywords:
Length: 3:51
Date Added: 20070717 09:02:09
Filename: ac_cktels_imped_ex2_eng
ID: 299

Problem 1
Use KVL to find the unknown phasor voltage V.  
AC Circuits >
Sinusoids >
Kirchoff's Laws
Keywords:
Length: 4:19
Date Added: 20070726 10:25:56
Filename: ac_phasors_kcvl_ex1_eng
ID: 336

Problem 2
Find the timedomain expression for i(t) using phasor techniques.  
AC Circuits >
Sinusoids >
Kirchoff's Laws
Keywords:
Length: 3:59
Date Added: 20070726 10:29:38
Filename: ac_phasors_kcvl_ex2_eng
ID: 337

Problem 3
Use KVL to find the amplitude and phase of v(t) using phasor techniques.  
AC Circuits >
Sinusoids >
Kirchoff's Laws
Keywords:
Length: 5:45
Date Added: 20070726 10:32:49
Filename: ac_phasors_kcvl_ex3_eng
ID: 338

Problem 4
Find the timedomain expression for i(t) using phasor techniques.  
AC Circuits >
Sinusoids >
Kirchoff's Laws
Keywords:
Length: 4:51
Date Added: 20070726 10:35:41
Filename: ac_phasors_kcvl_ex4_eng
ID: 339

Problem 1
Determine the following properties for each of the given sinusoidal voltages: amplitude, peaktopeak value, cyclic frequency (in Hz), angular frequency (in rad/s), period, and phase.  
AC Circuits >
Sinusoids >
Properties
Keywords:
Length: 3:35
Date Added: 20070726 12:38:14
Filename: ac_sinusoids_properties_ex1_eng
ID: 352

Problem 2
Given the table that describes three sinusoidal currents. Write the mathematical expression for each current in the form i(t) = I_{m}cos(ωt+Φ).  
AC Circuits >
Sinusoids >
Properties
Keywords:
Length: 3:03
Date Added: 20070726 12:49:49
Filename: ac_sinusoids_properties_ex2_eng
ID: 353

Problem 3
Express the voltage v(t) in the form V_{m}cos(ωt+Φ)  
AC Circuits >
Sinusoids >
Properties
Keywords:
Length: 4:14
Date Added: 20070726 12:55:48
Filename: ac_sinusoids_properties_ex3_eng
ID: 354

Problem 1
Given the periodic voltage waveform v(t). Determine its average value and its RMS value (also known as its effective DC value).  
AC Circuits >
RMS Value >
Arbitrary Waveform
Keywords:
Length: 6:22
Date Added: 20070717 09:02:09
Filename: ac_rms_arb_ex1_eng
ID: 302

Problem 2
Given the periodic current waveform i(t). Determine its average value and its RMS value (also known as its effective DC value).  
AC Circuits >
RMS Value >
Arbitrary Waveform
Keywords:
Length: 0:00
Date Added: 20070717 09:02:09
Filename: ac_rms_arb_ex2_eng
ID: 303

Problem 1
Find the average value and RMS value (also known as its effective DC value) of the sinusoidal voltage v(t) = VMcos(ωt). Use the mathematical definitions of average and RMS value. 
AC Circuits >
RMS Value >
Sinusoid
Keywords:
Length: 5:05
Date Added: 20070717 09:02:09
Filename: ac_rms_sinusoid_ex1_eng
ID: 304

Problem 2
Find the average value and RMS value (also known as its effective DC value) of the sinusoidal voltage v(t) = VDC + VMcos(ωt), a sinusoid with a DC (constant) offset. Use the mathematical definitions of average and RMS value. 
AC Circuits >
RMS Value >
Sinusoid
Keywords:
Length: 4:23
Date Added: 20070717 09:02:09
Filename: ac_rms_sinusoid_ex2_eng
ID: 305

Problem 1
Find the transfer function for H(jω)= V_{o}/V_{i}  
AC Circuits >
Frequency Response >
SecondOrder Bandpass Filter
Keywords:
Length: 6:18
Date Added: 20070726 08:18:51
Filename: ac_freq_activebpf2_ex1_eng
ID: 316

Problem 2
Design a second order bandpass filter with cutoff frequencies of 100 Hz and 100 kHz and a passband gain of 10.  
AC Circuits >
Frequency Response >
SecondOrder Bandpass Filter
Keywords:
Length: 6:28
Date Added: 20070726 08:26:04
Filename: ac_freq_activebpf2_ex2_eng
ID: 317

Problem 3
Find the transfer function H(s)=V_{out}/V_{in}. What type of filter is it?  
AC Circuits >
Frequency Response >
SecondOrder Bandpass Filter
Keywords:
Length: 8:25
Date Added: 20070727 12:47:25
Filename: ac_activebpf2_ex3_eng
ID: 398

Problem 5
Find the cutoff frequency of the filter. Use voltage divider to derive the transfer function. Obtain the output voltage in s.s.s when the input voltage is V_{in}=1cos(100t) V and V_{in}=1cos(10,000t+90°) V.  
AC Circuits >
Frequency Response >
Active Filter
Keywords:
Length: 8:17
Date Added: 20070726 08:51:52
Filename: ac_freq_activefilt_ex5_eng
ID: 318

Problem 1
a) Find the transfer function H(jω)=Vout/Vin b) At what frequency will the magnitude of H(jω) be maximum and what is the maximum value of the magnitude of H(jω)? c) At what frequency will the magnitude of H(jω) be minimum and what is the minimum value of the magnitude of H(jω)?  
AC Circuits >
Frequency Response >
Active Filter
Keywords:
Length: 6:14
Date Added: 20070727 10:26:16
Filename: ac_freq_activefilt_ex1_eng
ID: 378

Problem 2
Obtain the output voltage in s.s.s for the input voltage is Vin=1cos(100,000t+45°) V.  
AC Circuits >
Frequency Response >
Active Filter
Keywords:
Length: 6:02
Date Added: 20070727 10:30:14
Filename: ac_freq_activefilt_ex2_eng
ID: 379

Problem 3
a) Obtain the transfer function H(jω) corresponding to the Bode magnitude diagram shown in Fig. 1. b) What is the cutoff frequency of the filter? c) Design the filter with the circuit give in Fig. 2. Find the values of C and Ri.  
AC Circuits >
Frequency Response >
Active Filter
Keywords:
Length: 7:09
Date Added: 20070727 11:50:39
Filename: ac_freq_activefilt_ex3_eng
ID: 381

Problem 4
a) Obtain the transfer function H(jω) corresponding to the Bode magnitude diagram shown in Fig. 1. b) What is the cutoff frequency of the filter? c) Design the filter with the circuit give in Fig. 2. Find the values of Rf and Ri.  
AC Circuits >
Frequency Response >
Active Filter
Keywords:
Length: 5:06
Date Added: 20070727 11:54:05
Filename: ac_freq_activefilt_ex4_eng
ID: 382

Problem 1
Design a second order lowpass filter with a cutoff frequency of 500 Hz and a passband gain of 10. Use 0.1 μF capacitor.  
AC Circuits >
Frequency Response >
SecondOrder Lowpass Filter
Keywords:
Length: 9:25
Date Added: 20070726 09:06:22
Filename: ac_freq_activelpf2_ex1_eng
ID: 319

Problem 1
Obtain the transfer function H(jω) corresponding to the Bode magnitude diagrams shown in the figures.  
AC Circuits >
Frequency Response >
Bode Plots
Keywords:
Length: 3:59
Date Added: 20070726 09:10:00
Filename: ac_freq_bode_ex1_eng
ID: 320

Problem 2
Obtain the transfer function H(jω) corresponding to the Bode magnitude diagrams shown in the following figures.  
AC Circuits >
Frequency Response >
Bode Plots
Keywords:
Length: 3:07
Date Added: 20070726 09:15:34
Filename: ac_freq_bode_ex2_eng
ID: 321

Problem 3
Obtain the transfer function H(jω) corresponding to the Bode magnitude diagram shown in the figure below.  
AC Circuits >
Frequency Response >
Bode Plots
Keywords:
Length: 2:33
Date Added: 20070726 09:18:36
Filename: ac_freq_bode_ex3_eng
ID: 322

Problem 4
Obtain the transfer function H(jω) corresponding to the Bode magnitude diagram shown in the figure below.  
AC Circuits >
Frequency Response >
Bode Plots
Keywords:
Length: 2:09
Date Added: 20070726 09:21:45
Filename: ac_freq_bode_ex4_eng
ID: 323

Problem 10
problem_statement.gif
 
AC Circuits >
Frequency Response >
Bode Plots
Keywords:
Length: 4:43
Date Added: 20070727 11:59:10
Filename: ac_freq_bode_ex10_eng
ID: 384

Problem 5
Obtain the transfer function H(jω) corresponding to the Bode magnitude diagram shown in the figure below.  
AC Circuits >
Frequency Response >
Bode Plots
Keywords:
Length: 3:34
Date Added: 20070727 12:01:16
Filename: ac_freq_bode_ex5_eng
ID: 385

Problem 6
Obtain the transfer function H(jω) corresponding to the Bode magnitude diagram shown in the figure below.  
AC Circuits >
Frequency Response >
Bode Plots
Keywords:
Length: 2:55
Date Added: 20070727 12:03:05
Filename: ac_freq_bode_ex6_eng
ID: 386

Problem 7
Obtain the transfer function H(jω) corresponding to the Bode magnitude diagram shown in the figure below.  
AC Circuits >
Frequency Response >
Bode Plots
Keywords:
Length: 1:43
Date Added: 20070727 12:05:00
Filename: ac_freq_bode_ex7_eng
ID: 387

Problem 8
problem_statement.gif
 
AC Circuits >
Frequency Response >
Bode Plots
Keywords:
Length: 4:52
Date Added: 20070727 12:06:54
Filename: ac_freq_bode_ex8_eng
ID: 388

Problem 9
problem_statement.gif
 
AC Circuits >
Frequency Response >
Bode Plots
Keywords:
Length: 7:59
Date Added: 20070727 12:08:57
Filename: ac_freq_bode_ex9_eng
ID: 389

Problem 1
Find ω0, ωc1, ωc2, Q and β  
AC Circuits >
Frequency Response >
Bandpass Filter
Keywords:
Length: 5:55
Date Added: 20070726 09:25:38
Filename: ac_freq_passivebpf_ex1_eng
ID: 324

Problem 2
Derive the expression for H(s)=Vout/Vin. What type of filter is it? Find ω0, Q and β.  
AC Circuits >
Frequency Response >
Bandpass Filter
Keywords:
Length: 6:08
Date Added: 20070726 09:29:37
Filename: ac_freq_passivebpf_ex2_eng
ID: 325

Problem 1
Derive the expression for H(s)=Vo/Vi. What type of filter is it? Find ω0, ωc1, ωc2, Q and β.  
AC Circuits >
Frequency Response >
Bandreject Filter
Keywords:
Length: 6:53
Date Added: 20070726 09:33:07
Filename: ac_freq_passivebrf_ex1_eng
ID: 326

Problem 2
A radio receptor is often disrupted by 8 kHz whistle. Design a "whistlestop" filter that has a bandwidth of 1 kHz and uses 33 nF capacitor. b) The previous example is ideal and will completely eliminate the 8 kHz whistle. However, circuits are not ideal so let’s assume that the inductor has 2 Ω resistance and the source has 50 Ω resistance. If the filter specification calls for 18 dB, will the specification be met?  
AC Circuits >
Frequency Response >
Bandreject Filter
Keywords:
Length: 8:02
Date Added: 20070727 12:13:02
Filename: ac_freq_passivebrf_ex2_eng
ID: 390

Problem 3
a) Determine H(s)=Vout/Vin for the circuit in the figure. b) What is the maximum magnitude of the transfer function? c) What is the minimum magnitude of the transfer function? d) What type of filter is it?  
AC Circuits >
Frequency Response >
Bandreject Filter
Keywords:
Length: 10:13
Date Added: 20070727 12:15:20
Filename: ac_freq_passivebrf_ex3_eng
ID: 391

Problem 1
Find the transfer function for H(jω)=Vout/Vin. What type of filter is it?  
AC Circuits >
Frequency Response >
Highpass Filter
Keywords:
Length: 4:34
Date Added: 20070726 09:36:36
Filename: ac_freq_passivehpf_ex1_eng
ID: 327

Problem 2
Find the transfer function for H(jω)=Vout/Vin. What type of filter is it? What is the cutoff frequency of the filter?  
AC Circuits >
Frequency Response >
Highpass Filter
Keywords:
Length: 5:10
Date Added: 20070726 09:42:19
Filename: ac_freq_passivehpf_ex2_eng
ID: 328

Problem 1
The series RLC bandreject filter is shown in the figure below. It has a center frequency of 1 rad/s. Use scaling to compute new values of R and L that yield a circuit with a center frequency of 100 krad/s. Use 1 nF capacitor.  
AC Circuits >
Frequency Response >
Magnitude and Frequency Scaling
Keywords:
Length: 9:12
Date Added: 20070726 09:45:42
Filename: ac_freq_scaling_ex1_eng
ID: 329

Problem 1
Find the transfer function H(s)=V_{o}/V_{in}  
AC Circuits >
Frequency Response >
Transfer Function
Keywords:
Length: 5:08
Date Added: 20070726 09:49:21
Filename: ac_freq_transfnc_ex1_eng
ID: 330

Problem 2
Find the transfer function for H(s)=V_{o}/V_{i}.  
AC Circuits >
Frequency Response >
Transfer Function
Keywords:
Length: 5:40
Date Added: 20070726 09:52:04
Filename: ac_freq_transfnc_ex2_eng
ID: 331

Problem 3
Find the transfer function for H(s)=V_{o}/V_{i}.  
AC Circuits >
Frequency Response >
Transfer Function
Keywords:
Length: 6:46
Date Added: 20070726 09:54:26
Filename: ac_freq_transfnc_ex3_eng
ID: 332

Problem 1
Use the circuit shown below to design a bandreject filter with a center frequency of 100 krad/s and a bandwidth of 10 Mrad/s, and a pass band gain of 10. Use 1 nF capacitors and specify all resistor values.  
AC Circuits >
Frequency Response >
SecondOrder Bandreject Filter
Keywords:
Length: 10:53
Date Added: 20070727 10:22:55
Filename: ac_freq_activebrf2_ex1_eng
ID: 377

Problem 1
Use the prototype circuits shown below to design a thirdorder lowpass Butterworth filter that will have a passband gain of 10 dB and a cutoff frequency of 4 kHz.  
AC Circuits >
Frequency Response >
ThirdOrder Lowpass Filter
Keywords:
Length: 9:19
Date Added: 20070727 12:28:04
Filename: ac_freq_activelpf3_ex1_eng
ID: 392

Problem 1
Find the transfer function H(jω)=V_{out}/V_{in}. What type of filter is it?  
AC Circuits >
Frequency Response >
Lowpass Filter
Keywords:
Length: 6:12
Date Added: 20070727 12:31:58
Filename: ac_freq_passivelpf_ex1_eng
ID: 393

Problem 2
Find the transfer function H(jω)=V_{out}/V_{in}. What type of filter is it?  
AC Circuits >
Frequency Response >
Lowpass Filter
Keywords:
Length: 5:28
Date Added: 20070727 12:33:41
Filename: ac_freq_passivelpf_ex2_eng
ID: 394

Problem 1
Find the transfer function H(s)=V_{out}/V_{in}. What type of filter is it? What is the cutoff frequency of the filter?  
AC Circuits >
Frequency Response >
ThirdOrder Highpass Filter
Keywords:
Length: 0:00
Date Added: 20070727 12:51:52
Filename: ac_activehpf3_ex1_eng
ID: 399

Problem 1
Determine the voltage Vo.  
AC Circuits >
Mutual Inductance >
Phasor Analysis
Keywords:
Length: 3:47
Date Added: 20070726 10:01:33
Filename: ac_mutual_phasor_ex1_eng
ID: 333

Problem 2
Determine the current I.  
AC Circuits >
Mutual Inductance >
Phasor Analysis
Keywords:
Length: 3:34
Date Added: 20070726 10:10:29
Filename: ac_mutual_phasor_ex2_eng
ID: 334

Problem 3
Determine the voltage v_{O}(t)  
AC Circuits >
Mutual Inductance >
Phasor Analysis
Keywords:
Length: 6:54
Date Added: 20070726 10:18:13
Filename: ac_mutual_phasor_ex3_eng
ID: 335

Problem 2
Find the Norton equivalent circuit at the terminals QR. Express all complex values in your answer in both rectangular and polar form.  
AC Circuits >
Phasors >
Norton Equivalents
Keywords:
Length: 3:38
Date Added: 20070726 10:43:37
Filename: ac_phasors_norton_ex2_eng
ID: 340

Problem 1
Find the Norton equivalent circuit at the terminals FG. Express all complex values in your solution in both rectangular and polar form.  
AC Circuits >
Phasors >
Norton Equivalents
Keywords:
Length: 3:25
Date Added: 20070727 09:17:26
Filename: ac_phasors_norton_ex1_eng
ID: 373

Problem 3
Use mesh current analysis to find the phasor voltages V_{1} and V_{2}.  
AC Circuits >
Phasors >
Mesh Analysis
Keywords:
Length: 5:23
Date Added: 20070726 10:50:15
Filename: ac_phasors_mesh_ex3_eng
ID: 341

Problem 1
Find the steadystate sinusoidal current i(t) using mesh current analysis.  
AC Circuits >
Phasors >
Mesh Analysis
Keywords:
Length: 6:14
Date Added: 20070727 08:47:18
Filename: ac_phasors_mesh_ex1_eng
ID: 366

Problem 2
Use mesh current analysis to find the phasor current I and the phasor voltages V_{1} and V_{2}.  
AC Circuits >
Phasors >
Mesh Analysis
Keywords:
Length: 6:56
Date Added: 20070727 08:56:15
Filename: ac_phasors_mesh_ex2_eng
ID: 367

Problem 4
Find the current I using mesh current analysis.  
AC Circuits >
Phasors >
Mesh Analysis
Keywords:
Length: 4:43
Date Added: 20070727 09:06:25
Filename: ac_phasors_mesh_ex4_eng
ID: 369

Problem 5
Find the indicated mesh currents.  
AC Circuits >
Phasors >
Mesh Analysis
Keywords:
Length: 5:50
Date Added: 20070727 09:10:25
Filename: ac_phasors_mesh_ex5_eng
ID: 372

Problem 2
Find the voltage gain and phase shift of this circuit.  
AC Circuits >
Phasors >
Operational Amplifiers
Keywords:
Length: 2:59
Date Added: 20070726 11:59:19
Filename: ac_phasors_opamps_ex2_eng
ID: 342

Problem 4
Suppose this circuit is driven by a sinusoidal voltage source operating at 200 Hz. Determine the gain and phase shift of the circuit.  
AC Circuits >
Phasors >
Operational Amplifiers
Keywords:
Length: 3:54
Date Added: 20070726 12:02:14
Filename: ac_phasors_opamps_ex4_eng
ID: 343

Problem 1
Find the output voltage v_{o}(t) using phasor analysis.  
AC Circuits >
Phasors >
Operational Amplifiers
Keywords:
Length: 3:16
Date Added: 20070727 09:07:11
Filename: ac_phasors_opamps_ex1_eng
ID: 370

Problem 3
At what frequency (in Hz) will the magnitude of the gain be 0.707?  
AC Circuits >
Phasors >
Operational Amplifiers
Keywords:
Length: 5:03
Date Added: 20070727 13:08:46
Filename: ac_phasors_opamps_ex3_eng
ID: 404

Problem 2
Find the voltage v(t) using the superposition method.  
AC Circuits >
Phasors >
Superposition
Keywords:
Length: 8:10
Date Added: 20070726 12:06:14
Filename: ac_phasors_super_ex2_eng
ID: 344

Problem 1
Find the current i(t) using the superposition method. Write it in the form I_{M}cos(ωt+θ°).  
AC Circuits >
Phasors >
Superposition
Keywords:
Length: 6:04
Date Added: 20070727 13:12:23
Filename: ac_phasors_super_ex1_eng
ID: 405

Problem 2
Find the Thevenin equivalent circuit at the terminals QR. Express all complex values in your answer in both rectangular and polar form.  
AC Circuits >
Phasors >
Thevenin Equivalents
Keywords:
Length: 3:01
Date Added: 20070726 12:11:27
Filename: ac_phasors_thev_ex2_eng
ID: 345

Problem 1
Find the Thevenin equivalent circuit at the terminals FG. Express all complex values in your solution in both rectangular and polar form.  
AC Circuits >
Phasors >
Thevenin Equivalents
Keywords:
Length: 3:57
Date Added: 20070727 10:09:03
Filename: ac_phasors_thev_ex1_eng
ID: 376

Problem 1
Apply repeated source transformations to reduce this to an equivalent circuit at the terminals GH. The simplified circuit will consist of a voltage source in series with two seriesconnected passive elements.  
AC Circuits >
Phasors >
Source Transformations
Keywords:
Length: 4:24
Date Added: 20070727 09:37:11
Filename: ac_phasors_srctrans_ex1_eng
ID: 374

Problem 2
Apply repeated source transformations to reduce this to an equivalent circuit at the terminals JK. The simplified circuit will consist of a current source in parallel with two seriesconnected passive elements.  
AC Circuits >
Phasors >
Source Transformations
Keywords:
Length: 5:16
Date Added: 20070727 09:55:45
Filename: ac_phasors_srctrans_ex2_eng
ID: 375

Problem 4
Find all of the node voltages in the circuit.  
AC Circuits >
Phasors >
Nodal Analysis
Keywords:
Length: 3:01
Date Added: 20070731 12:20:55
Filename: ac_phasors_nodal_ex4_eng
ID: 410

Problem 5
Find the indicated currents expressed as cosine functions. Use the node voltage analysis method first.  
AC Circuits >
Phasors >
Nodal Analysis
Keywords:
Length: 7:19
Date Added: 20070731 13:29:03
Filename: ac_phasors_nodal_ex5_eng
ID: 411

Problem 6
Use nodal analysis to determine which impedance element has the lowest voltage magnitude across its terminals.  
AC Circuits >
Phasors >
Nodal Analysis
Keywords:
Length: 6:01
Date Added: 20070731 14:16:16
Filename: ac_phasors_nodal_ex6_eng
ID: 412

Problem 1
Find the steadystate sinusoidal voltages v_{1}(t) and v_{2}(t) using node voltage analysis.  
AC Circuits >
Phasors >
Nodal Analysis
Keywords:
Length: 6:30
Date Added: 20070803 13:30:09
Filename: ac_phasors_nodal_ex1_eng
ID: 450

Problem 2
Find the steadystate sinusoidal voltages v_{1}(t), v_{2}(t), and v_{3}(t) using node voltage analysis.  
AC Circuits >
Phasors >
Nodal Analysis
Keywords:
Length: 7:29
Date Added: 20070803 13:30:18
Filename: ac_phasors_nodal_ex2_eng
ID: 451

Problem 3
Find the steadystate sinusoidal voltages v_{1}(t) and v_{2}(t) using node voltage analysis.  
AC Circuits >
Phasors >
Nodal Analysis
Keywords:
Length: 5:15
Date Added: 20070803 13:30:24
Filename: ac_phasors_nodal_ex3_eng
ID: 452

Problem 1
Find the apparent power absorbed by the load in the circuit if v = 4 cos (3000t+30°) V.  
AC Circuits >
Power >
Apparent Power
Keywords:
Length: 6:54
Date Added: 20070726 12:14:53
Filename: ac_power_app_ex1_eng
ID: 346

Problem 1
The load in the circuit absorbs an average power of 80 W and a reactive power of 60 VAR. What is the power factor of the load? What are the values of the resistor and the inductor if v = 110 cos (2π60t) V?  
AC Circuits >
Power >
Power Factor
Keywords:
Length: 5:15
Date Added: 20070726 12:18:13
Filename: ac_power_pf_ex1_eng
ID: 347

Problem 2
Three 220 Vrms loads are connected in parallel. Load 1 absorbs an average power of 800 W and a reactive power of 200 VAR. Load 2 absorbs an average power of 600 W at 0.6 lagging power factor. Load 3 is a 80 Ω resistor in series with a capacitive reactance of 60 Ω. What is the pf of the equivalent load as seen by the voltage source?  
AC Circuits >
Power >
Power Factor
Keywords:
Length: 6:48
Date Added: 20070726 12:20:54
Filename: ac_power_pf_ex2_eng
ID: 348

Problem 3
In the circuit, Z1=100+j60 Ω and Z2=10j20 Ω. Calculate the pf of the equivalent load as seen by the voltage source and the total complex power delivered by the voltage source.  
AC Circuits >
Power >
Power Factor
Keywords:
Length: 4:27
Date Added: 20070726 12:23:55
Filename: ac_power_pf_ex3_eng
ID: 349

Problem 1
The periodic current is applied to a 10 kΩ resistor. Find the average power consumed by the resistor.  
AC Circuits >
Power >
RMS Value
Keywords:
Length: 5:51
Date Added: 20070726 12:29:46
Filename: ac_power_rms_ex1_eng
ID: 350

Problem 1
Find the average power, the reactive power and the complex power delivered by the voltage source if v = 6 cos (1000t) V.  
AC Circuits >
Power >
Complex Power
Keywords:
Length: 5:24
Date Added: 20070726 12:32:13
Filename: ac_power_s_ex1_eng
ID: 351

Problem 1
Find the average power absorbed by resistor, inductor and the capacitor in the circuit if v = 4 cos (2000t) V.  
AC Circuits >
Power >
Average Power
Keywords:
Length: 7:41
Date Added: 20070727 12:55:40
Filename: ac_power_avg_ex1_eng
ID: 400

Problem 1
Calculate the instantaneous power at the terminals of the network if v = 10 cos(2π 60t + 130°) V, i = 1 cos(2π 60t + 60°) mA  
AC Circuits >
Power >
Instantaneous Power
Keywords:
Length: 4:54
Date Added: 20070727 12:59:59
Filename: ac_power_inst_ex1_eng
ID: 401

Problem 1
In the circuit, a 110 Vrms load is fed from a transmission line having a impedance of 4 + j1 Ω. The load absorbs an average power of 8 kW at a lagging pf of 0.8. a) Determine the apparent power required to supply the load and the average power lost in the transmission line. b) Compute the value of a capacitor that would correct the power factor to 1 if placed in parallel with the load. Recompute the values in (a) for the load with the corrected power factor.  
AC Circuits >
Power >
Power Factor Correction
Keywords:
Length: 7:12
Date Added: 20070727 13:04:30
Filename: ac_power_pfcorr_ex1_eng
ID: 402

Problem 2
Three 100 Vrms loads are connected in parallel. Load 1 is a 50 Ω resistor in series with an inductive reactance of 40 Ω. Load 2 absorbs an average power of 500 W at 0.75 lagging power factor. Load 3 absorbs an apparent power of 600 VA at 0.9 lagging power factor. Assume the circuit is operating at 60 Hz. Compute the value of a capacitor that would correct the power factor to 1 if placed in parallel with the loads.  
AC Circuits >
Power >
Power Factor Correction
Keywords:
Length: 7:50
Date Added: 20070727 13:06:48
Filename: ac_power_pfcorr_ex2_eng
ID: 403

Problem 1
Determine the impedance Z_{L} that results in the maximum average power transferred to Z_{L}. What is the maximum average power transferred to the load impedance?  
AC Circuits >
Power >
Maximum Power Tranfer
Keywords:
Length: 7:37
Date Added: 20070803 13:28:43
Filename: ac_power_maxtransfer_ex1_eng
ID: 441

Problem 2
Determine settings of R and L that will result in the maximum average power transferred to R if i_{s} = 1 cos(1000t) mA and v_{s} = 30 cos(1000t+30°) V. What is the maximum average power transferred to R?  
AC Circuits >
Power >
Maximum Power Tranfer
Keywords:
Length: 8:12
Date Added: 20070803 13:28:52
Filename: ac_power_maxtransfer_ex2_eng
ID: 442

Problem 2
Find the z parameters of the twoports.  
AC Circuits >
TwoPort Networks >
Impedance Parameters
Keywords:
Length: 10:46
Date Added: 20070726 13:06:20
Filename: ac_twoport_z_ex2_eng
ID: 356

Problem 1
Find the z parameters of the twoports.  
AC Circuits >
TwoPort Networks >
Impedance Parameters
Keywords:
Length: 8:24
Date Added: 20070807 11:51:46
Filename: ac_twoport_z_ex1_eng
ID: 483

Problem 1
An ideal balanced threephase Yconnected generator with negative sequence is connected with a balanced threephaseWyeconnected load. Calculate the total average power delivered to the Yconnected load. Calculate the total reactive power absorbed by the load.  
AC Circuits >
Balanced ThreePhase >
Power
Keywords:
Length: 4:55
Date Added: 20070730 08:41:13
Filename: ac_3phase_power_ex1_eng
ID: 406

Problem 2
A balanced threephaseWyeconnected load requires 270 W at a lagging power factor of 0.9. The load is fed by an ideal threephase generator through a line having an impedance of 0.5+j1 Ω. The line voltage at the terminals of the load is 200 V. Calculate the complex power delivered by the generator.  
AC Circuits >
Balanced ThreePhase >
Power
Keywords:
Length: 7:30
Date Added: 20070730 10:35:29
Filename: ac_3phase_power_ex2_eng
ID: 407

Problem 1
A balanced threephase Yconnected generator with positive sequence is connected with a balanced threephasedeltaconnected load. Calculate the phase voltages at the load terminals.  
AC Circuits >
Balanced ThreePhase >
WyeDelta Connection
Keywords:
Length: 4:25
Date Added: 20070730 12:42:36
Filename: ac_3phase_yd_ex1_eng
ID: 409

Problem 1
A balanced threephase Yconnected generator with positive sequence is connected with a balanced threephaseconnected load. a) Calculate the three line currents I_{aA}, I_{bB}, and I_{cC}. b) Calculate the line voltages V_{AB}, V_{BC}, and V_{CA}.  
AC Circuits >
Balanced ThreePhase >
WyeWye Connection
Keywords:
Length: 5:45
Date Added: 20070803 13:29:01
Filename: ac_3phase_yy_ex1_eng
ID: 443

Problem 2
The phase voltage at the terminals of a balanced threephase YConnected load is 200 V. Assume the phase sequence is positive and the internal impedance of the source is 1+j1 Ω per phase. For each phase, the load has an impedance of 100+j100 Ω and the line impedance is 2+j2 Ω. Find the internal phasetoneutral voltages at the source.  
AC Circuits >
Balanced ThreePhase >
WyeWye Connection
Keywords:
Length: 5:11
Date Added: 20070803 13:29:06
Filename: ac_3phase_yy_ex2_eng
ID: 444

Problem 1
The magnitude of the phase voltage of an ideal balanced threephase Yconnected source is 400 V. The source is connected to a balanced Yconnected load through a line that has an impedance of 1+j5 Ω. The load is a 19 Ω resistor in series with an inductive reactance and the magnitude of the load voltage is 380 V. If the circuit is operating at the frequency of 60 Hz, determine the inductance of the load.  
AC Circuits >
Balanced ThreePhase >
Voltages
Keywords:
Length: 5:36
Date Added: 20070803 13:29:15
Filename: ac_3phase_voltage_ex1_eng
ID: 445

Problem 1
Is the circuit a balanced threephase system? Find I.  
AC Circuits >
Balanced ThreePhase >
Introductory Concepts
Keywords:
Length: 2:44
Date Added: 20070803 13:29:21
Filename: ac_3phase_intro_ex1_eng
ID: 446

Problem 1
Is the circuit a balanced threephase system? Find I.  
AC Circuits >
Unbalanced ThreePhase >
Introductory Concepts
Keywords:
Length: 6:53
Date Added: 20070730 11:48:25
Filename: ac_3phase_unbal_ex1_eng
ID: 408

Problem 1
Find the expression for the current i(t) which is valid for all time t. Plot the current for a time range before and after the switch closes.  
SDomain Circuits >
Circuit Analysis >
Step Response
Keywords:
Length: 8:57
Date Added: 20070727 09:08:05
Filename: s_cktanalysis_step_ex1_eng
ID: 371

Problem 1
Construct a twoport circuit that realizes the z parameters given.  
SDomain Circuits >
TwoPort Networks >
Design
Keywords:
Length: 5:14
Date Added: 20070726 13:41:04
Filename: s_twoport_design_ex1_eng
ID: 362

Problem 1
Find the y parameters of the twoport circuit.  
SDomain Circuits >
TwoPort Networks >
Admittance Parameters
Keywords:
Length: 4:59
Date Added: 20070726 14:10:13
Filename: s_twoport_y_ex1_eng
ID: 364

Problem 1
Determine the timedomain expression for each of the given sdomain expressions.  
SDomain Circuits >
Laplace Transform >
Inverse Laplace Transform
Keywords:
Length: 7:06
Date Added: 20070727 12:37:45
Filename: s_laplace_ilt_ex1_eng
ID: 395

Problem 2
Analysis of a circuit in the sdomain yields the expression for voltage shown in the diagram. Determine the corresponding timedomain expression for this voltage.  
SDomain Circuits >
Laplace Transform >
Inverse Laplace Transform
Keywords:
Length: 4:25
Date Added: 20070727 12:41:57
Filename: s_laplace_ilt_ex2_eng
ID: 396

Problem 3
Determine the timedomain expression for the given sdomain expression.  
SDomain Circuits >
Laplace Transform >
Inverse Laplace Transform
Keywords:
Length: 6:52
Date Added: 20070727 12:43:53
Filename: s_laplace_ilt_ex3_eng
ID: 397

Problem 1
Which devices are labeled according to the passive sign convention (PSC)?  
DC Circuits >
Circuit Variables >
Passive Sign Convention
Keywords:
Length: 1:40
Date Added: 20060829 12:31:10
Filename: cktvars_psc_ex1
ID: 2

Problem 1
(a) Suppose that a 12volt automobile battery with 100 amphour capacity is fully charged. How much energy (in joules) is stored in the battery? (b) Next, suppose that the battery needs to supply the automobile's emergency flashers while the driver seeks roadside assistance. The flashers consume 50 watts of power when on, and the flashers are active for a half second out of every two seconds. Assuming that the battery can maintain its rated output voltage until completely depleted of stored energy, how long (in hours) will the battery be able to operate the flashers? 
DC Circuits >
Circuit Variables >
Energy
Keywords:
Length: 5:22
Date Added: 20070523 19:24:04
Filename: cktvars_energy_ex1
ID: 40

Problem 2
For each device, state whether Passive Sign Convention (PSC) or Active Sign Convention (ASC) is used for the defined current and voltage. Then determine whether the device is absorbing or delivering power.  
DC Circuits >
Circuit Variables >
Passive Sign Convention
Keywords:
Length: 3:45
Date Added: 20070523 19:24:04
Filename: cktvars_psc_ex2
ID: 46

Problem 3
For labeled currents, draw an arrow to show the direction of positive current. For labeled voltages, circle the node that is at the highest potential.  
DC Circuits >
Circuit Variables >
Passive Sign Convention
Keywords:
Length: 1:41
Date Added: 20070523 19:24:04
Filename: cktvars_psc_ex3
ID: 47

Problem 1
For each current source, draw a current label (arrow and value) pointing up or to the right that is equivalent to the indicated current.  
DC Circuits >
Circuit Elements >
Current Sources
Keywords:
Length: 1:17
Date Added: 20070523 19:24:04
Filename: cktels_cs_ex1
ID: 79

Problem 2
Which of the following circuit connections are invalid?  
DC Circuits >
Circuit Elements >
Current Sources
Keywords:
Length: 2:22
Date Added: 20070523 19:24:04
Filename: cktels_cs_ex2
ID: 80

Problem 1
For each voltage source, draw a voltage label (polarity indicators and value) with the positive indicator at the top or to the right that is equivalent to the indicated voltage.  
DC Circuits >
Circuit Elements >
Voltage Sources
Keywords:
Length: 1:25
Date Added: 20070523 19:24:04
Filename: cktels_vs_ex1
ID: 81

Problem 1
For each current source, draw a current label (arrow and value) pointing up or to the right that is equivalent to the indicated content.  
DC Circuits >
Circuit Elements >
Dependent Current Sources
Keywords:
Length: 2:10
Date Added: 20070523 19:24:04
Filename: cktels_depcs_ex1
ID: 82

Problem 2
Which of the following circuit connections are invalid?  
DC Circuits >
Circuit Elements >
Voltage Sources
Keywords:
Length: 1:47
Date Added: 20070523 19:24:04
Filename: cktels_vs_ex2
ID: 85

Problem 1
For each voltage source, draw a voltage label (polarity indicators and value) with the positive indicator at the top or to the right that is equivalent to the indicated voltage.  
DC Circuits >
Circuit Elements >
Dependent Voltage Sources
Keywords:
Length: 1:49
Date Added: 20070523 19:24:04
Filename: cktels_depvs_ex1
ID: 86

Problem 1
A "night light" illuminates dark hallways and children's rooms at night. Older night lights use incandescent bulbs (tungsten filament in an evacuated glass envelope), while newer night lights use lightemitting diodes (LEDs). The older style night light bulb requires 4 W of power to operate, while a newer LED night light might require about 0.2 W of power. According to the U.S. Department of Energy, a kilowatthour costs 9.85 cents for the residential customers, on average (http://www.eia.doe.gov/cneaf/electricity/epm/table5_6_b.html). During the course of a year, what is the total cost saved by using an LEDbased night light instead of the older style night light? 
DC Circuits >
Circuit Variables >
SI Units
Keywords:
Length: 4:20
Date Added: 20070523 19:24:04
Filename: cktvars_units_ex1
ID: 246

Problem 3
As of 1983, the definition of a "meter" is based on the speed of light, specifically, the distance that light travels in a vacuum during the time interval 299,792,458^{1} seconds. Electrical signals moving in a cable (for example, the coaxial cable that connects your television to the cable jack in the wall) travel at approximately 70% of the speed of light. Speaking of television, a highdefinition (HD) receiver can update its display 60 times per second, where each display frame contains 1280x720 pixels. So: How far can the television signal travel in a coaxial cable during the time that an HD receiver is drawing a new pixel on the screen? 
DC Circuits >
Circuit Variables >
SI Units
Keywords:
Length: 3:15
Date Added: 20070523 19:24:04
Filename: cktvars_units_ex3
ID: 247

Problem 4
Beginning in Beijing, China, you need to travel about 11,000 kilometers to reach New York City. Communication satellite signals traveling between these two cities move at close to the speed of light (3x10^{8} meters per second). The eye blink duration of a human is approximately 300 milliseconds. So, is it possible for a communication signal to jump from Beijing to New York in the "blink of an eye?" 
DC Circuits >
Circuit Variables >
SI Units
Keywords:
Length: 2:19
Date Added: 20070523 19:24:04
Filename: cktvars_units_ex4
ID: 248

Problem 1
This is a tutorial introducing the concept of polar coordinates in reference to complex numbers.  
Tutorials >
Complex Numbers >
Polar Coordinates
Keywords:
Length: 13:47
Date Added: 20070523 19:24:04
Filename: complex_polar_ex1
ID: 55

Problem 2
This is a tutorial about how to perform mathematical operations on complex numbers in polar form.  
Tutorials >
Complex Numbers >
Polar Coordinates
Keywords:
Length: 6:27
Date Added: 20070523 19:24:04
Filename: complex_polar_ex2
ID: 56

Problem 1
This is a tutorial introducing the idea of complex numbers and how they're represented graphically.  
Tutorials >
Complex Numbers >
Rectangular Coordinates
Keywords:
Length: 8:17
Date Added: 20060829 12:31:22
Filename: complex_rect_ex1
ID: 57

Problem 2
This is a tutorial that shows how to perform arithmetic operations on complex numbers in the rectangular form.  
Tutorials >
Complex Numbers >
Rectangular Coordinates
Keywords:
Length: 9:24
Date Added: 20070523 19:24:04
Filename: complex_rect_ex2
ID: 58

Problem 1
Given this voltage waveform applied across a 1 μF capacitor, find the current through the capacitor.  
DC Circuits >
Energy Storage Elements >
CurrentVoltage Relationship of Capacitors
Keywords:
Length: 7:44
Date Added: 20070523 19:24:04
Filename: energyStorage_capacitorVi_ex1
ID: 95

Problem 2
Given this current waveform applied to a 10μF capacitor, find the capacitor's voltage as a function of time, given that v(0) = 0 volts.  
DC Circuits >
Energy Storage Elements >
CurrentVoltage Relationship of Capacitors
Keywords:
Length: 8:38
Date Added: 20070523 19:24:04
Filename: energyStorage_capacitorVi_ex2
ID: 96

Problem 1
Given the waveform of current through an inductor, find the voltage across the inductor as a function of time.  
DC Circuits >
Energy Storage Elements >
CurrentVoltage Relationship of Inductors
Keywords:
Length: 11:02
Date Added: 20070523 19:24:04
Filename: energyStorage_inductorVi_ex1
ID: 103

Problem 2
Given the voltage waveform applied across an inductor and that i(0) = 0, find i(t) for a 5H inductor.  
DC Circuits >
Energy Storage Elements >
CurrentVoltage Relationship of Inductors
Keywords:
Length: 8:59
Date Added: 20070523 19:24:04
Filename: energyStorage_inductorVi_ex2
ID: 104

Problem 1
Determine the following properties for each of the given sinusoidal voltages: amplitude, peaktopeak value, cyclic frequency (in Hz), angular frequency (in rad/s), period, and phase.  
AC Circuits >
Sinusoids >
Properties
Keywords:
Length: 3:35
Date Added: 20070726 12:38:14
Filename: ac_sinusoids_properties_ex1_eng
ID: 352

Problem 2
Given the table that describes three sinusoidal currents. Write the mathematical expression for each current in the form i(t) = I_{m}cos(ωt+Φ).  
AC Circuits >
Sinusoids >
Properties
Keywords:
Length: 3:03
Date Added: 20070726 12:49:49
Filename: ac_sinusoids_properties_ex2_eng
ID: 353

Problem 3
Express the voltage v(t) in the form V_{m}cos(ωt+Φ)  
AC Circuits >
Sinusoids >
Properties
Keywords:
Length: 4:14
Date Added: 20070726 12:55:48
Filename: ac_sinusoids_properties_ex3_eng
ID: 354

Problem 1
Find the value of V0.  
DC Circuits >
Resistive Circuits >
Kirchhoff's Current and Voltage Laws
Keywords:
Length: 6:49
Date Added: 20060829 12:31:14
Filename: resistive_kclKvl_ex1
ID: 20

Problem 2
Find the current through the 10 kΩ resistor.  
DC Circuits >
Resistive Circuits >
Kirchhoff's Current and Voltage Laws
Keywords:
Length: 5:39
Date Added: 20070523 19:24:04
Filename: resistive_kclKvl_ex2
ID: 21

Problem 3
Find the current through the 300 Ω resistor.  
DC Circuits >
Resistive Circuits >
Kirchhoff's Current and Voltage Laws
Keywords:
Length: 8:48
Date Added: 20070523 19:24:04
Filename: resistive_kclKvl_ex3
ID: 22

Problem 1
Determine the current through each of the resistors in this circuit.  
DC Circuits >
Resistive Circuits >
Kirchhoff's Current Law
Keywords:
Length: 4:37
Date Added: 20070523 19:24:04
Filename: resistive_kcl_ex1
ID: 23

Problem 4
A circuit analysis program tells us that v1 = 2V, v2 = 2V, v3 = 5V, v4 = 8V, and V5 = 5V. Test whether this is correct.  
DC Circuits >
Resistive Circuits >
Kirchhoff's Current and Voltage Laws
Keywords:
Length: 6:27
Date Added: 20070523 19:24:04
Filename: resistive_kclKvl_ex4
ID: 74

Problem 1
Find the voltage across resistor R0.  
DC Circuits >
Resistive Circuits >
Kirchhoff's Voltage Law
Keywords:
Length: 7:54
Date Added: 20070523 19:24:04
Filename: resistive_kvl_ex1
ID: 75

Problem 5
Find the currents i_{1}, i_{2}, and i_{3} using KCL.  
DC Circuits >
Resistive Circuits >
Kirchhoff's Current and Voltage Laws
Keywords:
Length: 5:41
Date Added: 20070523 19:24:04
Filename: resistive_kclKvl_ex5
ID: 105

Problem 1
Find the current i through the 7kΩ resistor using current division.  
DC Circuits >
Resistive Circuits >
Current Divider
Keywords:
Length: 5:32
Date Added: 20060829 12:31:46
Filename: resistive_currentDivider_ex1
ID: 174

Problem 2
Given that i = 6mA, v = 6V, 2i_{1} = 3i_{2}, i_{2} = 2i_{3}, v_{4}:v_{3} = 2:1, we need to specify the resistors to meet the following specification.  
DC Circuits >
Resistive Circuits >
Current Divider
Keywords:
Length: 9:22
Date Added: 20070523 19:24:04
Filename: resistive_currentDivider_ex2
ID: 175

Problem 1
Use voltage division to find the current i through the 30 kΩ resistor and the voltage v across the 6 kΩ resistor.  
DC Circuits >
Resistive Circuits >
Voltage Divider
Keywords:
Length: 6:05
Date Added: 20070523 19:24:04
Filename: resistive_viDivider_ex1
ID: 176

Problem 1
Use current division and voltage division to find the voltage vab across terminals ab.  
DC Circuits >
Resistive Circuits >
Voltage Divider
Keywords:
Length: 5:44
Date Added: 20070523 19:24:04
Filename: resistive_viDivider_ex2
ID: 177

Problem 1
Use voltage division to find the current i through the 30 kΩ resistor and the voltage v across the 6 kΩ resistor.  
DC Circuits >
Resistive Circuits >
Voltage Divider
Keywords:
Length: 8:39
Date Added: 20070523 19:24:04
Filename: resistive_voltDivider_ex1
ID: 178

Problem 7
Simplify the circuit between terminals a and b.  
DC Circuits >
Resistive Circuits >
Equivalent Resistance
Keywords:
Length: 5:15
Date Added: 20070523 19:24:04
Filename: resistive_equivResistance_ex7
ID: 19

Problem 1
Find the equivalent resistance at terminals a and b.  
DC Circuits >
Resistive Circuits >
Equivalent Resistance
Keywords:
Length: 3:36
Date Added: 20060829 12:31:25
Filename: resistive_equivResistance_ex1
ID: 70

Problem 2
Reduce the circuit to a single resistor at terminals a and b.  
DC Circuits >
Resistive Circuits >
Equivalent Resistance
Keywords:
Length: 3:41
Date Added: 20070523 19:24:04
Filename: resistive_equivResistance_ex2
ID: 71

Problem 3
Find the current i in the circuit.  
DC Circuits >
Resistive Circuits >
Equivalent Resistance
Keywords:
Length: 5:43
Date Added: 20070523 19:24:04
Filename: resistive_equivResistance_ex3
ID: 72

Problem 4
Obtain the equivalent resistance at terminals ab.  
DC Circuits >
Resistive Circuits >
Equivalent Resistance
Keywords:
Length: 6:08
Date Added: 20070523 19:24:04
Filename: resistive_equivResistance_ex4
ID: 73

Problem 1
Find the equivalent capacitance across terminals a and b.  
DC Circuits >
Energy Storage Elements >
Equivalent Capacitance
Keywords:
Length: 5:26
Date Added: 20070523 19:24:04
Filename: energyStorage_equivCapac_ex1
ID: 99

Problem 2
Find the equivalent capacitance seen by the voltage source.  
DC Circuits >
Energy Storage Elements >
Equivalent Capacitance
Keywords:
Length: 5:39
Date Added: 20070523 19:24:04
Filename: energyStorage_equivCapac_ex2
ID: 100

Problem 1
Find the equivalent inductance across terminals a and b.  
DC Circuits >
Energy Storage Elements >
Equivalent Inductance
Keywords:
Length: 4:41
Date Added: 20070523 19:24:04
Filename: energyStorage_equivInduc_ex1
ID: 101

Problem 1
Find the current i through the 7kΩ resistor using current division.  
DC Circuits >
Resistive Circuits >
Current Divider
Keywords:
Length: 5:32
Date Added: 20060829 12:31:46
Filename: resistive_currentDivider_ex1
ID: 174

Problem 2
Given that i = 6mA, v = 6V, 2i_{1} = 3i_{2}, i_{2} = 2i_{3}, v_{4}:v_{3} = 2:1, we need to specify the resistors to meet the following specification.  
DC Circuits >
Resistive Circuits >
Current Divider
Keywords:
Length: 9:22
Date Added: 20070523 19:24:04
Filename: resistive_currentDivider_ex2
ID: 175

Problem 1
Use voltage division to find the current i through the 30 kΩ resistor and the voltage v across the 6 kΩ resistor.  
DC Circuits >
Resistive Circuits >
Voltage Divider
Keywords:
Length: 6:05
Date Added: 20070523 19:24:04
Filename: resistive_viDivider_ex1
ID: 176

Problem 1
Use current division and voltage division to find the voltage vab across terminals ab.  
DC Circuits >
Resistive Circuits >
Voltage Divider
Keywords:
Length: 5:44
Date Added: 20070523 19:24:04
Filename: resistive_viDivider_ex2
ID: 177

Problem 1
Use voltage division to find the current i through the 30 kΩ resistor and the voltage v across the 6 kΩ resistor.  
DC Circuits >
Resistive Circuits >
Voltage Divider
Keywords:
Length: 8:39
Date Added: 20070523 19:24:04
Filename: resistive_voltDivider_ex1
ID: 178

Problem 5
How should the value of the variable voltage source V_{x} be adjusted to cause the voltage at node M to be zero?  
DC Circuits >
Nodal Analysis >
Grounded Voltage Sources
Keywords:
Length: 3:21
Date Added: 20070523 19:24:04
Filename: nodal_gndvs_5
ID: 3

Problem 4
Find the value of R that will make V_{C} = 8 volts. For this value of R, find V_{B} and V_{A}.  
DC Circuits >
Nodal Analysis >
Grounded Voltage Sources
Keywords:
Length: 5:04
Date Added: 20070523 19:24:04
Filename: nodal_gndvs_4
ID: 4

Problem 3
Find the indicated currents; use the node voltage method first.  
DC Circuits >
Nodal Analysis >
Grounded Voltage Sources
Keywords:
Length: 5:31
Date Added: 20070523 19:24:04
Filename: nodal_gndvs_3
ID: 6

Problem 3
Determine which sources are delivering power and which sources are absorbing power.  
DC Circuits >
Nodal Analysis >
Independent Current Sources
Keywords:
Length: 8:11
Date Added: 20070523 19:24:04
Filename: nodal_indcs_3
ID: 7

Problem 1
(a) Does the circuit have a "floating voltage source" which would require the "supernode" technique for nodal analysis? (b) Write the nodal equations for this circuit.  
DC Circuits >
Nodal Analysis >
Floating Voltage Sources (Supernodes)
Keywords:
Length: 3:04
Date Added: 20070523 19:24:04
Filename: nodal_super_1
ID: 9

Problem 2
Find all the node voltages in the circuit.  
DC Circuits >
Nodal Analysis >
Grounded Voltage Sources
Keywords:
Length: 4:42
Date Added: 20070523 19:24:04
Filename: nodal_gndvs_2
ID: 11

Problem 4
Find the three indicated node voltages using the node voltage method.  
DC Circuits >
Nodal Analysis >
Independent Current Sources
Keywords:
Length: 3:59
Date Added: 20070523 19:24:04
Filename: nodal_indcs_4
ID: 12

Problem 1
Determine the number of nodes in each circuit, and draw a closed contour around each node.  
DC Circuits >
Nodal Analysis >
Counting Nodes
Keywords:
Length: 3:17
Date Added: 20070523 19:24:04
Filename: nodal_count_ex1
ID: 48

Problem 2
Determine the number of nodes in this circuit, and draw a closed contour around each node.  
DC Circuits >
Nodal Analysis >
Counting Nodes
Keywords:
Length: 1:37
Date Added: 20070523 19:24:04
Filename: nodal_count_ex2
ID: 49

Problem 3
Determine the number of nodes in this circuit, and draw a closed contour around each node.  
DC Circuits >
Nodal Analysis >
Counting Nodes
Keywords:
Length: 2:32
Date Added: 20070523 19:24:04
Filename: nodal_count_ex3
ID: 50

Problem 1
Using nodal analysis, find the power delivered or absorbed by each element.  
DC Circuits >
Nodal Analysis >
Independent Current Sources
Keywords:
Length: 9:05
Date Added: 20070523 19:24:04
Filename: nodal_indcs_ex1
ID: 51

Problem 2
Use the node with the most connected branches as the ground reference, and then determine the remaining node voltages.  
DC Circuits >
Nodal Analysis >
Independent Current Sources
Keywords:
Length: 7:36
Date Added: 20060829 12:31:21
Filename: nodal_indcs_ex2
ID: 52

Problem 2
Use nodal analysis to determine the resistors that absorb the most and least power.  
DC Circuits >
Nodal Analysis >
Floating Voltage Sources (Supernodes)
Keywords:
Length: 7:13
Date Added: 20070523 19:24:04
Filename: nodal_super_ex2
ID: 67

Problem 3
Write the nodal equations for this circuit.  
DC Circuits >
Nodal Analysis >
Floating Voltage Sources (Supernodes)
Keywords:
Length: 3:09
Date Added: 20070523 19:24:04
Filename: nodal_super_ex3
ID: 68

Problem 1
Find the three indicated node voltages using the node voltage method.  
DC Circuits >
Nodal Analysis >
Grounded Voltage Sources
Keywords:
Length: 5:19
Date Added: 20070523 19:24:04
Filename: nodal_gndvs_1
ID: 240

Problem 1
Use mesh current analysis to find Vx.  
DC Circuits >
Mesh Analysis >
Dependent Sources
Keywords:
Length: 3:37
Date Added: 20070523 19:24:04
Filename: mesh_dep_ex1
ID: 5

Problem 1
Use nodal analysis to determine whether the dependent voltage source is absorbing or delivering power to the rest of the circuit.  
DC Circuits >
Nodal Analysis >
Dependent Sources
Keywords:
Length: 6:41
Date Added: 20070523 19:24:04
Filename: nodal_dep_1
ID: 8

Problem 1
Use mesh current analysis to find the voltage across each resistor.  
DC Circuits >
Mesh Analysis >
Independent Voltage Sources
Keywords:
Length: 4:18
Date Added: 20060829 12:31:12
Filename: mesh_indvs_ex1
ID: 10

Problem 2
Use mesh analysis to determine the two defined currents, Ix and Iy.  
DC Circuits >
Mesh Analysis >
Independent Voltage Sources
Keywords:
Length: 5:38
Date Added: 20070523 19:24:04
Filename: mesh_indvs_ex2
ID: 60

Problem 3
Determine all of the mesh currents in the circuit.  
DC Circuits >
Mesh Analysis >
Independent Voltage Sources
Keywords:
Length: 5:13
Date Added: 20070523 19:24:04
Filename: mesh_indvs_ex3
ID: 61

Problem 1
Determine all of the mesh currents in the circuit.  
DC Circuits >
Mesh Analysis >
Current Source in Single Mesh
Keywords:
Length: 4:29
Date Added: 20070523 19:24:04
Filename: mesh_owncs_ex1
ID: 62

Problem 2
Use mesh current analysis to find Vz.  
DC Circuits >
Mesh Analysis >
Current Source in Single Mesh
Keywords:
Length: 5:10
Date Added: 20070523 19:24:04
Filename: mesh_owncs_ex2
ID: 63

Problem 1
Use mesh current analysis to find the power associated with each voltage source.  
DC Circuits >
Mesh Analysis >
Current Source in Two Meshes (Supermeshes)
Keywords:
Length: 6:05
Date Added: 20070523 19:24:04
Filename: mesh_sharedcs_ex1
ID: 64

Problem 2
Determine each mesh current in this circuit.  
DC Circuits >
Mesh Analysis >
Current Source in Two Meshes (Supermeshes)
Keywords:
Length: 3:42
Date Added: 20070523 19:24:04
Filename: mesh_sharedcs_ex2
ID: 65

Problem 3
Use mesh analysis to find Vx and Iy.  
DC Circuits >
Mesh Analysis >
Current Source in Two Meshes (Supermeshes)
Keywords:
Length: 6:36
Date Added: 20070523 19:24:04
Filename: mesh_sharedcs_ex3
ID: 66

Problem 3
Use mesh current analysis to find the phasor voltages V_{1} and V_{2}.  
AC Circuits >
Phasors >
Mesh Analysis
Keywords:
Length: 5:23
Date Added: 20070726 10:50:15
Filename: ac_phasors_mesh_ex3_eng
ID: 341

Problem 1
Find the steadystate sinusoidal current i(t) using mesh current analysis.  
AC Circuits >
Phasors >
Mesh Analysis
Keywords:
Length: 6:14
Date Added: 20070727 08:47:18
Filename: ac_phasors_mesh_ex1_eng
ID: 366

Problem 2
Use mesh current analysis to find the phasor current I and the phasor voltages V_{1} and V_{2}.  
AC Circuits >
Phasors >
Mesh Analysis
Keywords:
Length: 6:56
Date Added: 20070727 08:56:15
Filename: ac_phasors_mesh_ex2_eng
ID: 367

Problem 4
Find the current I using mesh current analysis.  
AC Circuits >
Phasors >
Mesh Analysis
Keywords:
Length: 4:43
Date Added: 20070727 09:06:25
Filename: ac_phasors_mesh_ex4_eng
ID: 369

Problem 5
Find the indicated mesh currents.  
AC Circuits >
Phasors >
Mesh Analysis
Keywords:
Length: 5:50
Date Added: 20070727 09:10:25
Filename: ac_phasors_mesh_ex5_eng
ID: 372

Problem 1
Apply repeated source transformations to reduce this to an equivalent circuit at the terminals GH. The simplified circuit will consist of a voltage source in series with two seriesconnected passive elements.  
AC Circuits >
Phasors >
Source Transformations
Keywords:
Length: 4:24
Date Added: 20070727 09:37:11
Filename: ac_phasors_srctrans_ex1_eng
ID: 374

Problem 2
Apply repeated source transformations to reduce this to an equivalent circuit at the terminals JK. The simplified circuit will consist of a current source in parallel with two seriesconnected passive elements.  
AC Circuits >
Phasors >
Source Transformations
Keywords:
Length: 5:16
Date Added: 20070727 09:55:45
Filename: ac_phasors_srctrans_ex2_eng
ID: 375

Problem 4
Find all of the node voltages in the circuit.  
AC Circuits >
Phasors >
Nodal Analysis
Keywords:
Length: 3:01
Date Added: 20070731 12:20:55
Filename: ac_phasors_nodal_ex4_eng
ID: 410

Problem 5
Find the indicated currents expressed as cosine functions. Use the node voltage analysis method first.  
AC Circuits >
Phasors >
Nodal Analysis
Keywords:
Length: 7:19
Date Added: 20070731 13:29:03
Filename: ac_phasors_nodal_ex5_eng
ID: 411

Problem 6
Use nodal analysis to determine which impedance element has the lowest voltage magnitude across its terminals.  
AC Circuits >
Phasors >
Nodal Analysis
Keywords:
Length: 6:01
Date Added: 20070731 14:16:16
Filename: ac_phasors_nodal_ex6_eng
ID: 412

Problem 1
Find the steadystate sinusoidal voltages v_{1}(t) and v_{2}(t) using node voltage analysis.  
AC Circuits >
Phasors >
Nodal Analysis
Keywords:
Length: 6:30
Date Added: 20070803 13:30:09
Filename: ac_phasors_nodal_ex1_eng
ID: 450

Problem 2
Find the steadystate sinusoidal voltages v_{1}(t), v_{2}(t), and v_{3}(t) using node voltage analysis.  
AC Circuits >
Phasors >
Nodal Analysis
Keywords:
Length: 7:29
Date Added: 20070803 13:30:18
Filename: ac_phasors_nodal_ex2_eng
ID: 451

Problem 3
Find the steadystate sinusoidal voltages v_{1}(t) and v_{2}(t) using node voltage analysis.  
AC Circuits >
Phasors >
Nodal Analysis
Keywords:
Length: 5:15
Date Added: 20070803 13:30:24
Filename: ac_phasors_nodal_ex3_eng
ID: 452

Problem 2
Use repeated source transformations to convert this circuit into Norton form.  
DC Circuits >
Source Transformations >
Single Source
Keywords:
Length: 3:10
Date Added: 20070523 19:24:04
Filename: srcTrans_res_ex2
ID: 41

Problem 3
Use repeated source transformations to convert this circuit into Thèvenin form.  
DC Circuits >
Source Transformations >
Single Source
Keywords:
Length: 2:45
Date Added: 20070523 19:24:04
Filename: srcTrans_res_ex3
ID: 42

Problem 4
Use repeated source transformations to convert this circuit into Thevenin form.  
DC Circuits >
Source Transformations >
Multiple Sources
Keywords:
Length: 3:35
Date Added: 20060829 12:31:25
Filename: srcTrans_ex4
ID: 69

Problem 5
Use repeated source transformations to convert this circuit into Thevenin form.  
DC Circuits >
Source Transformations >
Multiple Sources
Keywords:
Length: 4:53
Date Added: 20070523 19:24:04
Filename: srcTrans_ex5
ID: 77

Problem 6
Use repeated source transformations to convert this circuit into Norton form.  
DC Circuits >
Source Transformations >
Multiple Sources
Keywords:
Length: 3:55
Date Added: 20070523 19:24:04
Filename: srcTrans_ex6
ID: 78

Problem 1
Find the ThÃ¨venin equivalent circuit at the terminals ST.  
DC Circuits >
ThÃ¨venin Equivalents >
Dependent Sources Exclusively
Keywords:
Length: 5:59
Date Added: 20070523 19:24:04
Filename: thev_dep_ex1
ID: 88

Problem 2
Find the ThÃ¨venin equivalent circuit at the terminals UV.  
DC Circuits >
ThÃ¨venin Equivalents >
Dependent Sources Exclusively
Keywords:
Length: 3:17
Date Added: 20070523 19:24:04
Filename: thev_dep_ex2
ID: 89

Problem 1
Find the ThÃ¨venin equivalent at the terminals AB. Use two different methods to find the ThÃ¨venin resistance: (a) As a ratio of shortcircuit current and opencircuit voltage, and (b) as the lookback resistance.  
DC Circuits >
ThÃ¨venin Equivalents >
Independent Sources
Keywords:
Length: 5:09
Date Added: 20070523 19:24:04
Filename: thev_ind_ex1
ID: 90

Problem 2
Find the ThÃ¨venin equivalent circuit to the left of the terminals AB.  
DC Circuits >
ThÃ¨venin Equivalents >
Independent Sources
Keywords:
Length: 2:38
Date Added: 20070523 19:24:04
Filename: thev_ind_ex2
ID: 91

Problem 3
Find the ThÃ¨venin equivalent circuit at the terminals AB.  
DC Circuits >
ThÃ¨venin Equivalents >
Independent Sources
Keywords:
Length: 4:52
Date Added: 20070523 19:24:04
Filename: thev_ind_ex3
ID: 92

Problem 4
Find the ThÃ¨venin equivalent circuit at the terminals EF.  
DC Circuits >
ThÃ¨venin Equivalents >
Independent Sources
Keywords:
Length: 8:34
Date Added: 20070523 19:24:04
Filename: thev_ind_ex4
ID: 93

Problem 1
Find the ThÃ¨venin equivalent circuit at the terminals GH.  
DC Circuits >
ThÃ¨venin Equivalents >
Independent and Dependent Sources
Keywords:
Length: 5:52
Date Added: 20070523 19:24:04
Filename: thev_inddep_ex1
ID: 94

Problem 1
Use repeated source transformations to convert this circuit into Norton form.  
DC Circuits >
Source Transformations >
Single Source
Keywords:
Length: 2:24
Date Added: 20070523 19:24:04
Filename: srcTrans_res_ex1
ID: 254

Problem 1
Use superposition to determine the voltage V_{X}. State which source influences V_{X} the most.  
DC Circuits >
Superposition >
Two Sources
Keywords:
Length: 5:38
Date Added: 20070523 19:24:04
Filename: super_ex1
ID: 255

Problem 2
Use superposition to determine the current I. State which source influences I the most.  
DC Circuits >
Superposition >
Three Sources
Keywords:
Length: 9:04
Date Added: 20070523 19:24:04
Filename: super_ex2
ID: 256

Problem 3
Use superposition to determine the voltage V_{X}.  
DC Circuits >
Superposition >
Two Sources
Keywords:
Length: 5:28
Date Added: 20070523 19:24:04
Filename: super_ex3
ID: 257

Problem 2
Find the Norton equivalent circuit at the terminals QR. Express all complex values in your answer in both rectangular and polar form.  
AC Circuits >
Phasors >
Norton Equivalents
Keywords:
Length: 3:38
Date Added: 20070726 10:43:37
Filename: ac_phasors_norton_ex2_eng
ID: 340

Problem 2
Find the Thevenin equivalent circuit at the terminals QR. Express all complex values in your answer in both rectangular and polar form.  
AC Circuits >
Phasors >
Thevenin Equivalents
Keywords:
Length: 3:01
Date Added: 20070726 12:11:27
Filename: ac_phasors_thev_ex2_eng
ID: 345

Problem 1
Find the Norton equivalent circuit at the terminals FG. Express all complex values in your solution in both rectangular and polar form.  
AC Circuits >
Phasors >
Norton Equivalents
Keywords:
Length: 3:25
Date Added: 20070727 09:17:26
Filename: ac_phasors_norton_ex1_eng
ID: 373

Problem 1
Find the Thevenin equivalent circuit at the terminals FG. Express all complex values in your solution in both rectangular and polar form.  
AC Circuits >
Phasors >
Thevenin Equivalents
Keywords:
Length: 3:57
Date Added: 20070727 10:09:03
Filename: ac_phasors_thev_ex1_eng
ID: 376

Problem 1
Determine the impedance Z_{L} that results in the maximum average power transferred to Z_{L}. What is the maximum average power transferred to the load impedance?  
AC Circuits >
Power >
Maximum Power Tranfer
Keywords:
Length: 7:37
Date Added: 20070803 13:28:43
Filename: ac_power_maxtransfer_ex1_eng
ID: 441

Problem 2
Determine settings of R and L that will result in the maximum average power transferred to R if i_{s} = 1 cos(1000t) mA and v_{s} = 30 cos(1000t+30°) V. What is the maximum average power transferred to R?  
AC Circuits >
Power >
Maximum Power Tranfer
Keywords:
Length: 8:12
Date Added: 20070803 13:28:52
Filename: ac_power_maxtransfer_ex2_eng
ID: 442

Problem 2
Find the voltage v(t) using the superposition method.  
AC Circuits >
Phasors >
Superposition
Keywords:
Length: 8:10
Date Added: 20070726 12:06:14
Filename: ac_phasors_super_ex2_eng
ID: 344

Problem 1
Find the average power absorbed by resistor, inductor and the capacitor in the circuit if v = 4 cos (2000t) V.  
AC Circuits >
Power >
Average Power
Keywords:
Length: 7:41
Date Added: 20070727 12:55:40
Filename: ac_power_avg_ex1_eng
ID: 400

Problem 1
Find the current i(t) using the superposition method. Write it in the form I_{M}cos(ωt+θ°).  
AC Circuits >
Phasors >
Superposition
Keywords:
Length: 6:04
Date Added: 20070727 13:12:23
Filename: ac_phasors_super_ex1_eng
ID: 405

Problem 1
Find the apparent power absorbed by the load in the circuit if v = 4 cos (3000t+30°) V.  
AC Circuits >
Power >
Apparent Power
Keywords:
Length: 6:54
Date Added: 20070726 12:14:53
Filename: ac_power_app_ex1_eng
ID: 346

Problem 1
The load in the circuit absorbs an average power of 80 W and a reactive power of 60 VAR. What is the power factor of the load? What are the values of the resistor and the inductor if v = 110 cos (2π60t) V?  
AC Circuits >
Power >
Power Factor
Keywords:
Length: 5:15
Date Added: 20070726 12:18:13
Filename: ac_power_pf_ex1_eng
ID: 347

Problem 2
Three 220 Vrms loads are connected in parallel. Load 1 absorbs an average power of 800 W and a reactive power of 200 VAR. Load 2 absorbs an average power of 600 W at 0.6 lagging power factor. Load 3 is a 80 Ω resistor in series with a capacitive reactance of 60 Ω. What is the pf of the equivalent load as seen by the voltage source?  
AC Circuits >
Power >
Power Factor
Keywords:
Length: 6:48
Date Added: 20070726 12:20:54
Filename: ac_power_pf_ex2_eng
ID: 348

Problem 3
In the circuit, Z1=100+j60 Ω and Z2=10j20 Ω. Calculate the pf of the equivalent load as seen by the voltage source and the total complex power delivered by the voltage source.  
AC Circuits >
Power >
Power Factor
Keywords:
Length: 4:27
Date Added: 20070726 12:23:55
Filename: ac_power_pf_ex3_eng
ID: 349

Problem 1
The periodic current is applied to a 10 kΩ resistor. Find the average power consumed by the resistor.  
AC Circuits >
Power >
RMS Value
Keywords:
Length: 5:51
Date Added: 20070726 12:29:46
Filename: ac_power_rms_ex1_eng
ID: 350

Problem 1
Find the average power, the reactive power and the complex power delivered by the voltage source if v = 6 cos (1000t) V.  
AC Circuits >
Power >
Complex Power
Keywords:
Length: 5:24
Date Added: 20070726 12:32:13
Filename: ac_power_s_ex1_eng
ID: 351

Problem 1
In the circuit, a 110 Vrms load is fed from a transmission line having a impedance of 4 + j1 Ω. The load absorbs an average power of 8 kW at a lagging pf of 0.8. a) Determine the apparent power required to supply the load and the average power lost in the transmission line. b) Compute the value of a capacitor that would correct the power factor to 1 if placed in parallel with the load. Recompute the values in (a) for the load with the corrected power factor.  
AC Circuits >
Power >
Power Factor Correction
Keywords:
Length: 7:12
Date Added: 20070727 13:04:30
Filename: ac_power_pfcorr_ex1_eng
ID: 402

Problem 2
Three 100 Vrms loads are connected in parallel. Load 1 is a 50 Ω resistor in series with an inductive reactance of 40 Ω. Load 2 absorbs an average power of 500 W at 0.75 lagging power factor. Load 3 absorbs an apparent power of 600 VA at 0.9 lagging power factor. Assume the circuit is operating at 60 Hz. Compute the value of a capacitor that would correct the power factor to 1 if placed in parallel with the loads.  
AC Circuits >
Power >
Power Factor Correction
Keywords:
Length: 7:50
Date Added: 20070727 13:06:48
Filename: ac_power_pfcorr_ex2_eng
ID: 403

Problem 2
In this problem, we’ll assume that both operational amplifiers are ideal. We want to determine the output voltage V_{O}.  
DC Circuits >
Operational Amplifiers >
Inverting
Keywords:
Length: 5:40
Date Added: 20070523 19:24:04
Filename: opAmp_inv_ex2
ID: 16

Problem 1
In this problem, we assume the operational amplifier is ideal, we are interested in the voltage across the 1kΩ resistor.  
DC Circuits >
Operational Amplifiers >
Inverting
Keywords:
Length: 5:39
Date Added: 20060829 12:31:16
Filename: opAmp_inv_ex1
ID: 30

Problem 1
An inverting amplifier circuit is given in figure 1. a) Assume the op amp is ideal and determine v_{o} . b) Replace the operational amplifier by the finite gain model shown in figure 2. Assuming the parameters of the op amp are R_{i} = 100kΩ, R_{o} = 100kΩ, and A = 100,000, repeat the analysis and find v_{o}.  
DC Circuits >
Operational Amplifiers >
Modeling
Keywords:
Length: 8:51
Date Added: 20070523 19:24:04
Filename: opAmp_model_ex1
ID: 172

Problem 2
An noninverting amplifier circuit is given in figure 1. a) If the load resistor R_{L} = 1kΩ, determine v_{o} assuming the op amp is ideal. Repeat the analysis for R_{L} = 100kΩ. b) Replace the operational amplifier by the finite gain model shown in figure 2. Assume the parameters of the op amp are R_{i} = 100kΩ, R_{o} = 100kΩ, and A = 100,000. Repeat the analysis of a).  
DC Circuits >
Operational Amplifiers >
Modeling
Keywords:
Length: 8:40
Date Added: 20070523 19:24:04
Filename: opAmp_model_ex2
ID: 173

Problem 1
Find the current through the 6kΩ resistor.  
DC Circuits >
Operational Amplifiers >
Noninverting
Keywords:
Length: 5:06
Date Added: 20070523 19:24:04
Filename: opAmp_nonInv_ex1
ID: 213

Problem 2
Calculate the output voltage v_{o}  
DC Circuits >
Operational Amplifiers >
Noninverting
Keywords:
Length: 4:37
Date Added: 20070523 19:24:04
Filename: opAmp_nonInv_ex2
ID: 214

Problem 2
Find the voltage gain and phase shift of this circuit.  
AC Circuits >
Phasors >
Operational Amplifiers
Keywords:
Length: 2:59
Date Added: 20070726 11:59:19
Filename: ac_phasors_opamps_ex2_eng
ID: 342

Problem 4
Suppose this circuit is driven by a sinusoidal voltage source operating at 200 Hz. Determine the gain and phase shift of the circuit.  
AC Circuits >
Phasors >
Operational Amplifiers
Keywords:
Length: 3:54
Date Added: 20070726 12:02:14
Filename: ac_phasors_opamps_ex4_eng
ID: 343

Problem 1
Find the output voltage v_{o}(t) using phasor analysis.  
AC Circuits >
Phasors >
Operational Amplifiers
Keywords:
Length: 3:16
Date Added: 20070727 09:07:11
Filename: ac_phasors_opamps_ex1_eng
ID: 370

Problem 3
At what frequency (in Hz) will the magnitude of the gain be 0.707?  
AC Circuits >
Phasors >
Operational Amplifiers
Keywords:
Length: 5:03
Date Added: 20070727 13:08:46
Filename: ac_phasors_opamps_ex3_eng
ID: 404

Problem 1
Read the resistor color codes to determine their values and tolerances. Report the values using engineering prefix notation, i.e., ohms, kiloohms, or megaohms.  
DC Circuits >
Circuit Elements >
Resistor Color Codes
Keywords:
Length: 4:36
Date Added: 20060829 12:31:19
Filename: cktels_resistorCode_ex1
ID: 43

Problem 2
Find the maximum and minimum specified resistance for each resistor.  
DC Circuits >
Circuit Elements >
Resistor Color Codes
Keywords:
Length: 4:40
Date Added: 20070523 19:24:04
Filename: cktels_resistorCode_ex2
ID: 44

Problem 1
Based on the following measurements across a black box's terminals, determine what elements are inside it.  
DC Circuits >
Resistive Circuits >
Ohm's law
Keywords:
Length: 5:10
Date Added: 20070523 19:24:04
Filename: resistive_ohmLaw_ex1
ID: 76
