Question 1

-In Figure 8 -1, the time from point C to E is called .

Accepted Answer

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

Question 2

Kirchhoff's voltage law can be used with resistive ac circuits.

Accepted Answer

A) True 
 B)False  True

Question 3

-This display in Figure 8 -3 illustrates maladjustment of which control on the oscilloscope?

Accepted Answer

A) volts/div 
B) intensity 
C) coupling 
D) trigger level 
A) volts/div 
B) intensity 
C) coupling 
D) trigger level D

Question 4

Calculate the total power dissipation in the circuit in Figure 8 -2.

Accepted Answer

A) 45.6 mW 
B) 64.5 mW 
C) 9.12 mW 
D) 182 mW 
A) 45.6 mW 
B) 64.5 mW 
C) 9.12 mW 
D) 182 mW

Question 5

RMS is another name for peak.

Accepted Answer

A) True 
 B)False

Question 6

Spectrum analyzers

Accepted Answer

A) are fquency -domain devices 
B) display the sinusoidal components of a waveform 
C) are used primarily in RF and microwave applications 
D) all of the above 
A) are fquency -domain devices 
B) display the sinusoidal components of a waveform 
C) are used primarily in RF and microwave applications 
D) all of the above

Question 7

The RMS value of a sine wave means .

Accepted Answer

A) the root mean square value 
B) the heating effect of an ac generator of the same voltage 
C) the same as IPP × R 
D) the same as IP × R 
A) the root mean square value 
B) the heating effect of an ac generator of the same voltage 
C) the same as IPP × R 
D) the same as IP × R

Question 8

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

Accepted Answer

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

Question 9

Superimposing an AC voltage of 3.54 Vrms with a DC source of 10 V results in a waveform that:

Accepted Answer

A) peaks at 20 V. 
B) peaks at 13.54 V. 
C) peaks at 15 V. 
D) both B and C 
A) peaks at 20 V. 
B) peaks at 13.54 V. 
C) peaks at 15 V. 
D) both B and C

Question 10

The term RMS stands for "root -mean -square."

Accepted Answer

A) True 
 B)False

Question 11

A sine wave's frequency equals the reciprocal of its period.

Accepted Answer

A) True 
 B)False

Question 12

While troubleshooting a circuit the voltage seems to be zero; what if any adjustment should be checked on the oscilloscope?

Accepted Answer

A) trigger level 
B) focus setting 
C) time division setting 
D) AC/GND/DC switch 
A) trigger level 
B) focus setting 
C) time division setting 
D) AC/GND/DC switch

Question 13

An oscilloscope's seconds/division switch is set on 20 ms/div. If a sine wave measures 4 divisions horizontally, what frequency is being measured?

Accepted Answer

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

Question 14

-Which of the following can be measured from points B to F in Figure 8 -1?

Accepted Answer

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

Question 15

A sine wave's peak value is smaller than its RMS value.

Accepted Answer

A) True 
 B)False

Question 16

Tradionally, radio frequency signal generators operate in the range of

Accepted Answer

A) 100 kHz to 5 GHz 
B) 100 kHz to 1 GHz 
C) 500 kHz to 5 GHz 
D) 10 kHz to 1 GHz 
A) 100 kHz to 5 GHz 
B) 100 kHz to 1 GHz 
C) 500 kHz to 5 GHz 
D) 10 kHz to 1 GHz

Question 17

-Calculate IT in Figure 8 -2.

Accepted Answer

A) 4.55 mAPP 
B) 9.12 mAPP 
C) 3.22 mAPP 
D) 6.44 mAPP 
A) 4.55 mAPP 
B) 9.12 mAPP 
C) 3.22 mAPP 
D) 6.44 mAPP

Question 18

Current flows both ways simultaneously in an AC circuit.

Accepted Answer

A) True 
 B)False

Question 19

If the period of a square wave is 22 ms, what is its frequency?

Accepted Answer

A) 22 kHz 
B) 45.5 kHz 
C) 45.5 Hz 
D) 22 Hz 
A) 22 kHz 
B) 45.5 kHz 
C) 45.5 Hz 
D) 22 Hz

Question 20

The higher a sine wave's frequency, the shorter its period.

Accepted Answer

A) True 
 B)False

-In Figure 8 -1, the time from point C to E is called .

Kirchhoff's voltage law can be used with resistive ac circuits.

-This display in Figure 8 -3 illustrates maladjustment of which control on the oscilloscope?

Calculate the total power dissipation in the circuit in Figure 8 -2.

RMS is another name for peak.

Spectrum analyzers

The RMS value of a sine wave means .

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

Superimposing an AC voltage of 3.54 Vrms with a DC source of 10 V results in a waveform that:

The term RMS stands for "root -mean -square."

A sine wave's frequency equals the reciprocal of its period.

While troubleshooting a circuit the voltage seems to be zero; what if any adjustment should be checked on the oscilloscope?

An oscilloscope's seconds/division switch is set on 20 ms/div. If a sine wave measures 4 divisions horizontally, what frequency is being measured?

-Which of the following can be measured from points B to F in Figure 8 -1?

A sine wave's peak value is smaller than its RMS value.

Tradionally, radio frequency signal generators operate in the range of

-Calculate IT in Figure 8 -2.

Current flows both ways simultaneously in an AC circuit.

If the period of a square wave is 22 ms, what is its frequency?

The higher a sine wave's frequency, the shorter its period.

Systems, Quantities, and Units

Voltage, Current, and Resistance

Ohms Law, Energy, and Power

Series Circuits

Parallel Circuits

Series-Parallel Circuits

Magnetism and Electromagnetism

Capacitors

Rccircuits

Inductors

Rlcircuits

Rlccircuits and Resonance

Transformers

Time Response of Reactive Circuits

Filters

Exam 8: Introduction to Alternating Current and Voltage

-In Figure 8 -1, the time from point C to E is called .

Kirchhoff's voltage law can be used with resistive ac circuits.

-This display in Figure 8 -3 illustrates maladjustment of which control on the oscilloscope?

Calculate the total power dissipation in the circuit in Figure 8 -2.

RMS is another name for peak.

Spectrum analyzers

The RMS value of a sine wave means .

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

Superimposing an AC voltage of 3.54 Vrms with a DC source of 10 V results in a waveform that:

The term RMS stands for "root -mean -square."

A sine wave's frequency equals the reciprocal of its period.

While troubleshooting a circuit the voltage seems to be zero; what if any adjustment should be checked on the oscilloscope?

An oscilloscope's seconds/division switch is set on 20 ms/div. If a sine wave measures 4 divisions horizontally, what frequency is being measured?

-Which of the following can be measured from points B to F in Figure 8 -1?

A sine wave's peak value is smaller than its RMS value.

Tradionally, radio frequency signal generators operate in the range of

-Calculate IT in Figure 8 -2.

Current flows both ways simultaneously in an AC circuit.

If the period of a square wave is 22 ms, what is its frequency?

The higher a sine wave's frequency, the shorter its period.

Systems, Quantities, and Units

Voltage, Current, and Resistance

Ohms Law, Energy, and Power

Series Circuits

Parallel Circuits

Series-Parallel Circuits

Magnetism and Electromagnetism

Capacitors

Rccircuits

Inductors

Rlcircuits

Rlccircuits and Resonance

Transformers

Time Response of Reactive Circuits

Filters