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Alternating Current and Voltage

Alternating Current and Voltage
If the peak of a sine wave is 13 V, the peak-to-peak value is

26 V
13 V
None of these
6.5 V

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Alternating Current and Voltage
When a sine wave has a frequency of 100 Hz in 12 s it goes through

12 cycles
1/100 cycle
1,200 cycles
120 cycles

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Alternating Current and Voltage
A square wave has a period of 60 s. The first odd harmonic is

33.33 kHz
500 kHz
50 kHz
5 kHz

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

54.4 V
7.07 V
5.44 V
8 V

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Alternating Current and Voltage
A pulse waveform has a high time of 8 ms and a pulse width of 32 ms. The duty cycle is

1%
25%
50%
100%

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Alternating Current and Voltage
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 lags wave B by 15°.
Wave A leads wave B by 15°.
Wave A lags wave B by 105°.
Wave A leads wave B by 105°.

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