ALTERNATING CURRENT AND VOLTAGE QUIZ

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

5.93 V

16.54 V

10.60 V

TRUE ANSWER : ?
YOUR ANSWER : ?

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

26.6 V

4 V

18.8 V

2.66 V

TRUE ANSWER : ?
YOUR ANSWER : ?

A sawtooth wave has a period of 10 ms. Its frequency is

1,000 Hz

100 Hz

10 Hz

50 Hz

TRUE ANSWER : ?
YOUR ANSWER : ?

The average value of a 12 V peak sine wave over one complete cycle is

0 V

7.64 V

6.37 V

1.27 V

TRUE ANSWER : ?
YOUR ANSWER : ?

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 : ?
YOUR ANSWER : ?

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

TRUE ANSWER : ?
YOUR ANSWER : ?

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

6.5 V

13 V

None of these

26 V

TRUE ANSWER : ?
YOUR ANSWER : ?

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

1.3 MHz

18 kHz

12 kHz

25 kHz

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

3,000 s

2 ms

0.0045 s

1.5 ms

TRUE ANSWER : ?
YOUR ANSWER : ?

How many degrees are there in /3 rad?

60°

6°

27°

180°

TRUE ANSWER : ?
YOUR ANSWER : ?

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