ALTERNATING CURRENT AND VOLTAGE QUIZ

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

25.48 V

14.14 V

6.37 V

50.96 V

TRUE ANSWER : ?
YOUR ANSWER : ?

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

22.6 mA

45.12 mA

39.6 mA

16 mA

TRUE ANSWER : ?
YOUR ANSWER : ?

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

100 Hz

1,000 Hz

10 Hz

50 Hz

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How many degrees are there in /3 rad?

27°

180°

6°

60°

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

None of these

13 V

6.5 V

26 V

TRUE ANSWER : ?
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One sine wave has a positive-going zero crossing at 15° and another sine wave has a positive-going zero crossing at 55°. The phase angle between the two waveforms is

None of these

40°

0°

45°

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

0 V

7.64 V

1.27 V

6.37 V

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

18.8 V

26.6 V

4 V

2.66 V

TRUE ANSWER : ?
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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

11 V

4 V

1.6 V

4.6 V

TRUE ANSWER : ?
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When a sine wave has a frequency of 100 Hz in 12 s it goes through

1,200 cycles

1/100 cycle

120 cycles

12 cycles

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YOUR ANSWER : ?

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