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Alternating Current and Voltage

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

4 V
18.8 V
26.6 V
2.66 V

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Alternating Current and Voltage
The average value of a 12 V peak sine wave over one complete cycle is

1.27 V
0 V
6.37 V
7.64 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

25%
1%
50%
100%

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Alternating Current and Voltage
A sine wave of 15 kHz is changing at a faster rate than a sine wave with a frequency of

18 kHz
12 kHz
25 kHz
1.3 MHz

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Alternating Current and Voltage
To produce an 800 Hz sine wave, a four-pole generator must be operated at

1,600 rps
800 rps
400 rps
200 rps

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

5 kHz
50 kHz
33.33 kHz
500 kHz

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