ALTERNATING CURRENT AND VOLTAGE QUIZ

A sine wave of 15 kHz is changing at a faster rate than a sine wave with a frequency of

1.3 MHz

25 kHz

12 kHz

18 kHz

TRUE ANSWER : ?
YOUR ANSWER : ?

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

400 rps

800 rps

1,600 rps

200 rps

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YOUR ANSWER : ?

If the peak of a sine wave is 13 V, the peak-to-peak value is

6.5 V

None of these

26 V

13 V

TRUE ANSWER : ?
YOUR ANSWER : ?

A square wave has a period of 60 s. The first odd harmonic is

33.33 kHz

50 kHz

5 kHz

500 kHz

TRUE ANSWER : ?
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The average half-cycle value of a sine wave with a 40 V peak is

50.96 V

25.48 V

6.37 V

14.14 V

TRUE ANSWER : ?
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Two series resistors are connected to an ac source. If there are 7.5 V rms across one resistor and 4.2 V rms across the other, the peak source voltage is

1.65 V

10.60 V

5.93 V

16.54 V

TRUE ANSWER : ?
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The conductive loop on the rotor of a simple two-pole, single-phase generator rotates at a rate of 400 rps. The frequency of the induced output voltage is

100 Hz

40 Hz

400 Hz

indeterminable

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

0 V

6 V

30 V

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A waveform has a baseline of 3 V, a duty cycle of 20%, and an amplitude of 8 V. The average voltage value is

1.6 V

4.6 V

11 V

4 V

TRUE ANSWER : ?
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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

1.5 ms

2 ms

3,000 s

0.0045 s

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