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Alternating Current and Voltage

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%
100%
50%

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Alternating Current and Voltage
The conductive loop on the rotor of a simple two-pole, single-phase generator rotates at a rate of 400 rps. The frequency of the induced output voltage is

100 Hz
indeterminable
40 Hz
400 Hz

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

1,600 rps
400 rps
200 rps
800 rps

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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

5.44 V
54.4 V
8 V
7.07 V

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Alternating Current and Voltage
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

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