ALTERNATING CURRENT AND VOLTAGE QUIZ

If the rms current through a 6.8 k resistor is 8 mA, the rms voltage drop across the resistor is

5.44 V

8 V

7.07 V

54.4 V

TRUE ANSWER : ?
YOUR ANSWER : ?

How many degrees are there in /3 rad?

180°

60°

6°

27°

TRUE ANSWER : ?
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If the rms current through a 4.7 k resistor is 4 mA, the peak voltage drop across the resistor is

2.66 V

18.8 V

26.6 V

4 V

TRUE ANSWER : ?
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A sine wave with an rms value of 12 V is riding on a dc level of 18 V. The maximum value of the resulting waveform is

35 V

30 V

6 V

0 V

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A sine wave with a period of 4 ms is changing at a faster rate than a sine wave with a period of

2 ms

0.0045 s

3,000 s

1.5 ms

TRUE ANSWER : ?
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If the peak of a sine wave is 13 V, the peak-to-peak value is

6.5 V

26 V

None of these

13 V

TRUE ANSWER : ?
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A sawtooth wave has a period of 10 ms. Its frequency is

50 Hz

1,000 Hz

100 Hz

10 Hz

TRUE ANSWER : ?
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To produce an 800 Hz sine wave, a four-pole generator must be operated at

400 rps

800 rps

200 rps

1,600 rps

TRUE ANSWER : ?
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A phasor represents

the phase angle

the width of a quantity

the magnitude of a quantity

the magnitude and a quantity direction

TRUE ANSWER : ?
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A signal with a 400 s period has a frequency of

2,500 Hz

250 Hz

400 Hz

25,000 Hz

TRUE ANSWER : ?
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