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Alternating Current and Voltage

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

6.37 V
0 V
7.64 V
1.27 V

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

400 rps
1,600 rps
800 rps
200 rps

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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
40 Hz
100 Hz
indeterminable

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Alternating Current and Voltage
A 20 kHz pulse waveform consists of pulses that are 15 s wide. The duty cycle

is 30%
is 100%
cannot be determined
is 1%

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Alternating Current and Voltage
A sawtooth wave has a period of 10 ms. Its frequency is

10 Hz
50 Hz
100 Hz
1,000 Hz

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Alternating Current and Voltage
A phasor represents

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

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