Question 1

-Find   in Figure 8-2.

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 2

-In Figure , the time from point C to E is called ________.

Accepted Answer

A) a cycle 
B) the period 
C) peak voltage 
D) a half-cycle 
A) a cycle 
B) the period 
C) peak voltage 
D) a half-cycle

Question 3

-Calculate   in Figure 8-2.

Accepted Answer

A) 6.84 VP 
B) 13.2 VP 
C) 13.7 VP 
D) 21.4 VP 
A) 6.84 VP 
B) 13.2 VP 
C) 13.7 VP 
D) 21.4 VP

Question 4

What is the instantaneous voltage at 42° on a 230 VP sine wave?

Accepted Answer

A) 154 V 
B) 115 V 
C) 149 V 
D) 76.1 V 
A) 154 V 
B) 115 V 
C) 149 V 
D) 76.1 V

Question 5

Kirchhoffʹs voltage law can be used with resistive ac circuits.

Accepted Answer

A) True 
 B)False

Question 6

Rise time, fall time, and duty cycle are all terms associated with sine wave measurement.

Accepted Answer

A) True 
 B)False

Question 7

The square wave is made up of:

Accepted Answer

A) just the fundamental frequency. 
B) the fundamental frequency and both the odd and even harmonics. 
C) the fundamental frequency and all the even harmonics. 
D) the fundamental frequency and all the odd harmonics. 
A) just the fundamental frequency. 
B) the fundamental frequency and both the odd and even harmonics. 
C) the fundamental frequency and all the even harmonics. 
D) the fundamental frequency and all the odd harmonics.

Question 8

A 12 VP sine wave equals ________.

Accepted Answer

A) 8.48 VRMS 
B) 7.64 VAVG 
C) 24 VPP 
D) all of these 
A) 8.48 VRMS 
B) 7.64 VAVG 
C) 24 VPP 
D) all of these

Question 9

-In Figure 8-2, what is the instantaneous voltage across   at an angle of 22°?

Accepted Answer

A) 8.03 V 
B) 2.56 V 
C) 20.3 V 
D) 12.0 V 
A) 8.03 V 
B) 2.56 V 
C) 20.3 V 
D) 12.0 V

Question 10

Troubleshooting an AC circuit can be performed with which of the following tools?

Accepted Answer

A) digital multimeter 
B) analog voltmeter 
C) oscilloscope 
D) any of the above 
A) digital multimeter 
B) analog voltmeter 
C) oscilloscope 
D) any of the above

Question 11

If a   resistor carries 5 mARMS of current, its voltage drop equals ________.

Accepted Answer

A) 5 VRMS 
B) 50 VRMS 
C) 7.07 VRMS 
D) 70.7 VRMS 
A) 5 VRMS 
B) 50 VRMS 
C) 7.07 VRMS 
D) 70.7 VRMS

Question 12

What is the instantaneous voltage at

Accepted Answer

A) 49.4 V 
B) 80.5 V 
C) 161 V 
D) 98.8 V 
A) 49.4 V 
B) 80.5 V 
C) 161 V 
D) 98.8 V

Question 13

-In Figure , which of the following can be measured from point E to point F?

Accepted Answer

A) the peak to peak voltage 
B) the peak voltage 
C) the RMS voltage 
D) one cycle of voltage 
A) the peak to peak voltage 
B) the peak voltage 
C) the RMS voltage 
D) one cycle of voltage

Question 14

-which of the following can be measured from points B to F in Figure ?

Accepted Answer

A) the peak-to-peak voltage 
B) the frequency 
C) the period 
D) the angle 
A) the peak-to-peak voltage 
B) the frequency 
C) the period 
D) the angle

Question 15

-What is the instantaneous voltage at   on a 22 VPP sine wave?

Accepted Answer

A) 10.7 V 
B) 0.33 V 
C) -2.66 V 
D) -10.7 V 
A) 10.7 V 
B) 0.33 V 
C) -2.66 V 
D) -10.7 V

Question 16

An oscilloscopeʹs volts/division switch is set on 50 mV/div. oscilloscopeʹs trace is 1.6 division, what voltage is being measured?

Accepted Answer

A) 0.008 V 
B) 50 mV 
C) 1.6 mV 
D) 80 mV 
A) 0.008 V 
B) 50 mV 
C) 1.6 mV 
D) 80 mV

Question 17

An oscilloscopeʹs seconds/division switch is set on 20 ms/div. horizontally, what frequency is being measured?

Accepted Answer

A) 12.5 Hz 
B) 25 Hz 
C) 50 Hz 
D) More information is needed. 
A) 12.5 Hz 
B) 25 Hz 
C) 50 Hz 
D) More information is needed.

Question 18

The time required by a 10 V square wave to change from 1 V to 9 V is known as the ________.

Accepted Answer

A) fall time 
B) pulse width 
C) period 
D) rise time 
A) fall time 
B) pulse width 
C) period 
D) rise time

Question 19

What is the approximate instantaneous voltage at 37° on a 169 VP sine wave?

Accepted Answer

A) 239 V 
B) 135 V 
C) 102 V 
D) 119 V 
A) 239 V 
B) 135 V 
C) 102 V 
D) 119 V

Question 20

-In Figure 8-1, if the time from point A to H is 60 μs the frequency is ________.

Accepted Answer

A) 16.7 kHz 
B) 25 kHz 
C) 50 kHz 
D) More information is required to calculate the frequency. 
A) 16.7 kHz 
B) 25 kHz 
C) 50 kHz 
D) More information is required to calculate the frequency.

Exam 8: Circuit Theorems and Conversions

-Find in Figure 8-2.

-In Figure , the time from point C to E is called ________.

-Calculate in Figure 8-2.

What is the instantaneous voltage at 42° on a 230 VP sine wave?

Kirchhoffʹs voltage law can be used with resistive ac circuits.

Rise time, fall time, and duty cycle are all terms associated with sine wave measurement.

The square wave is made up of:

A 12 VP sine wave equals ________.

-In Figure 8-2, what is the instantaneous voltage across at an angle of 22°?

Troubleshooting an AC circuit can be performed with which of the following tools?

If a resistor carries 5 mARMS of current, its voltage drop equals ________.

What is the instantaneous voltage at

-In Figure , which of the following can be measured from point E to point F?

-which of the following can be measured from points B to F in Figure ?

-What is the instantaneous voltage at on a 22 VPP sine wave?

An oscilloscopeʹs volts/division switch is set on 50 mV/div. oscilloscopeʹs trace is 1.6 division, what voltage is being measured?

An oscilloscopeʹs seconds/division switch is set on 20 ms/div. horizontally, what frequency is being measured?

The time required by a 10 V square wave to change from 1 V to 9 V is known as the ________.

What is the approximate instantaneous voltage at 37° on a 169 VP sine wave?

-In Figure 8-1, if the time from point A to H is 60 μs the frequency is ________.

Quantities and Units

Voltage, Current, and Resistance

Ohms Law

Energy and Power

Series Circuits

Parallel Circuits

Series-Parallel Circuits

Branch, Loop, and Node Analyses

Magnetism and Electromagnetism

Introduction to Alternating Current and Voltage

Capacitors

Inductors

Transformers

RC Circuits

RL Circuits

RlC Circuits and Resonance

Passive Filters

Circuit Theorems in Ac Analysis

Time Response of Reactive Circuits

Three-Phase Systems in Power Applications

Filters