Question 1

-If R1 shorts in Figure 8 -2, VR2 .

Accepted Answer

A) decreases 
B) increases 
C) remains the same 
A) decreases 
B) increases 
C) remains the same

Question 2

The symbol for the period of a wave form is:

Accepted Answer

A) W. 
B) P. 
C) T. 
D) F. 
A) W. 
B) P. 
C) T. 
D) F.

Question 3

A formula for VRMS is .

Accepted Answer

A) 2 × VP 
B) 0.707 × VPP 
C) 0.707 × VP 
D) 2.8 × VP 
A) 2 × VP 
B) 0.707 × VPP 
C) 0.707 × VP 
D) 2.8 × VP

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

If a 10 kΩ resistor carries 5 mARMS of current, its voltage drop equals .

Accepted Answer

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

Question 6

An oscilloscope's seconds/division switch is set on 20 µs/cm. If the trace is 7.5 cm long, what is the period?

Accepted Answer

A) 0.0015 s 
B) 1.5 µs 
C) 5 µs 
D) 150 µs 
A) 0.0015 s 
B) 1.5 µs 
C) 5 µs 
D) 150 µs

Question 7

The square wave is made up of:

Accepted Answer

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

Question 8

-In Figure 8 -2, what is the instantaneous voltage across R1 at an angle of 22°?

Accepted Answer

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

Question 9

If a rectangular wave's pulse width is 50 µS and its frequency is 4 kHz, its duty cycle is _.

Accepted Answer

A) 20% 
B) 1.25% 
C) 98.75% 
D) 80% 
A) 20% 
B) 1.25% 
C) 98.75% 
D) 80%

Question 10

If you measure about 56 VPP across the source in Figure 8 -2, what is the trouble?

Accepted Answer

A) Both R1 and R2 are open. 
B) R2 is open. 
C) R1 is open. 
D) There is no trouble. 56 VPP is a normal measurement for the source voltage. 
E) any of these 
A) Both R1 and R2 are open. 
B) R2 is open. 
C) R1 is open. 
D) There is no trouble. 56 VPP is a normal measurement for the source voltage. 
E) any of these

Question 11

The largest numerical value in the measurement of alternating current is:

Accepted Answer

A) peak. 
B) rms. 
C) average. 
D) peak to peak. 
A) peak. 
B) rms. 
C) average. 
D) peak to peak.

Question 12

-Calculate VR2 in Figure 8 -2. Figure 8 -2

Accepted Answer

A) 4.84 VP 
B) 13.15 VP 
C) 6.84 VPP 
D) 6.84 VP 
A) 4.84 VP 
B) 13.15 VP 
C) 6.84 VPP 
D) 6.84 VP

Question 13

A signal source that can produce custom waveforms is called a(n)

Accepted Answer

A) custom -pattern generator 
B) multifunction singal generator 
C) arbitrary function generator 
D) all of the above 
A) custom -pattern generator 
B) multifunction singal generator 
C) arbitrary function generator 
D) all of the above

Question 14

A sine wave's instantaneous voltage is 0 V at degrees.

Accepted Answer

A) 180 
B) 0 
C) 360 
D) all of these 
A) 180 
B) 0 
C) 360 
D) all of these

Question 15

-In Figure 8 -1, which of the following can be measured from point E to point F?

Accepted Answer

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

Question 16

-VR2 if R1 opens in Figure 8 -2.

Accepted Answer

A) remains the same 
B) increases 
C) decreases 
A) remains the same 
B) increases 
C) decreases

Question 17

-In Figure 8 -2, what is the instantaneous voltage across R1 at 122°?

Accepted Answer

A) 18.2 V 
B) 11.2 V 
C) 5.8 V 
D) 11.6 V 
A) 18.2 V 
B) 11.2 V 
C) 5.8 V 
D) 11.6 V

Question 18

The time (T)and the frequency (f)of an AC waveform are related as:

Accepted Answer

A) universally proportional. 
B) directly proportional. 
C) inversely proportional. 
D) complimentary proportional. 
A) universally proportional. 
B) directly proportional. 
C) inversely proportional. 
D) complimentary proportional.

Question 19

What is the instantaneous voltage at 17° on a 169 VP sine wave?

Accepted Answer

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

Question 20

The formula to convert degrees to radians is:

Accepted Answer

A)    
B)    
C)   $180 ^ { \circ } = \mathrm { n } \text { radians }$ 
D)  $\text { all of these }$ 
A)    
B)    
C)   $180 ^ { \circ } = \mathrm { n } \text { radians }$ 
D)  $\text { all of these }$

-If R1 shorts in Figure 8 -2, VR2 .

The symbol for the period of a wave form is:

A formula for VRMS is .

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

If a 10 kΩ resistor carries 5 mARMS of current, its voltage drop equals .

An oscilloscope's seconds/division switch is set on 20 µs/cm. If the trace is 7.5 cm long, what is the period?

The square wave is made up of:

-In Figure 8 -2, what is the instantaneous voltage across R1 at an angle of 22°?

If a rectangular wave's pulse width is 50 µS and its frequency is 4 kHz, its duty cycle is _.

If you measure about 56 VPP across the source in Figure 8 -2, what is the trouble?

The largest numerical value in the measurement of alternating current is:

-Calculate VR2 in Figure 8 -2. Figure 8 -2

A signal source that can produce custom waveforms is called a(n)

A sine wave's instantaneous voltage is 0 V at degrees.

-In Figure 8 -1, which of the following can be measured from point E to point F?

-VR2 if R1 opens in Figure 8 -2.

-In Figure 8 -2, what is the instantaneous voltage across R1 at 122°?

The time (T)and the frequency (f)of an AC waveform are related as:

What is the instantaneous voltage at 17° on a 169 VP sine wave?

The formula to convert degrees to radians is:

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

-If R1 shorts in Figure 8 -2, VR2 .

The symbol for the period of a wave form is:

A formula for VRMS is .

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

If a 10 kΩ resistor carries 5 mARMS of current, its voltage drop equals .

An oscilloscope's seconds/division switch is set on 20 µs/cm. If the trace is 7.5 cm long, what is the period?

The square wave is made up of:

-In Figure 8 -2, what is the instantaneous voltage across R1 at an angle of 22°?

If a rectangular wave's pulse width is 50 µS and its frequency is 4 kHz, its duty cycle is _.

If you measure about 56 VPP across the source in Figure 8 -2, what is the trouble?

The largest numerical value in the measurement of alternating current is:

-Calculate VR2 in Figure 8 -2. Figure 8 -2

A signal source that can produce custom waveforms is called a(n)

A sine wave's instantaneous voltage is 0 V at degrees.

-In Figure 8 -1, which of the following can be measured from point E to point F?

-VR2 if R1 opens in Figure 8 -2.

-In Figure 8 -2, what is the instantaneous voltage across R1 at 122°?

The time (T)and the frequency (f)of an AC waveform are related as:

What is the instantaneous voltage at 17° on a 169 VP sine wave?

The formula to convert degrees to radians is:

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