ALTERNATING CURRENT AND VOLTAGE QUIZ

A signal with a 400 s period has a frequency of

250 Hz

400 Hz

2,500 Hz

25,000 Hz

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YOUR ANSWER : ?

A sinusoidal current has an rms value of 14 mA. The peak-to-peak value is

45.12 mA

22.6 mA

16 mA

39.6 mA

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If the rms voltage drop across a 15 k resistor is 16 V, the peak current through the resistor is

1.5 mA

1 mA

10 mA

15 mA

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

26 V

None of these

13 V

6.5 V

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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

400 Hz

indeterminable

40 Hz

100 Hz

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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

0 V

35 V

6 V

30 V

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How many degrees are there in /3 rad?

60°

180°

6°

27°

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

16.54 V

10.60 V

1.65 V

5.93 V

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If a sine wave goes through 10 cycles in 20 s, the period is

100 s

4 s

20 s

2 s

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The average half-cycle value of a sine wave with a 40 V peak is

25.48 V

6.37 V

50.96 V

14.14 V

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