ALTERNATING CURRENT AND VOLTAGE QUIZ

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

1.27 V

6.37 V

0 V

7.64 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

25 kHz

12 kHz

18 kHz

TRUE ANSWER : ?
YOUR ANSWER : ?

A signal with a 400 s period has a frequency of

250 Hz

2,500 Hz

400 Hz

25,000 Hz

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

4.6 V

4 V

11 V

1.6 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

16 mA

39.6 mA

TRUE ANSWER : ?
YOUR ANSWER : ?

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

7.07 V

54.4 V

5.44 V

8 V

TRUE ANSWER : ?
YOUR ANSWER : ?

Sine wave A has a positive-going zero crossing at 45°. Sine wave B has a positive-going zero crossing at 60°. Which of the following statements is true?

Wave A leads wave B by 15°.

Wave A lags wave B by 105°.

Wave A lags wave B by 15°.

Wave A leads wave B by 105°.

TRUE ANSWER : ?
YOUR ANSWER : ?

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

6.5 V

None of these

13 V

26 V

TRUE ANSWER : ?
YOUR ANSWER : ?

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

100 Hz

10 Hz

1,000 Hz

50 Hz

TRUE ANSWER : ?
YOUR ANSWER : ?

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

6.37 V

25.48 V

14.14 V

50.96 V

TRUE ANSWER : ?
YOUR ANSWER : ?

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