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Alternating Current and Voltage

Alternating Current and Voltage
A sine wave with an rms value of 12 V is riding on a dc level of 18 V. The maximum value of the resulting waveform is

6 V
0 V
30 V
35 V

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Alternating Current and Voltage
A phasor represents

the phase angle
the magnitude and a quantity direction
the magnitude of a quantity
the width of a quantity

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Alternating Current and Voltage
A sine wave with a period of 4 ms is changing at a faster rate than a sine wave with a period of

3,000 s
1.5 ms
2 ms
0.0045 s

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

0 V
6.37 V
1.27 V
7.64 V

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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

400 Hz
100 Hz
40 Hz
indeterminable

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