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Alternating Current and Voltage

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

indeterminable
40 Hz
400 Hz
100 Hz

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

None of these
6.5 V
26 V
13 V

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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

12 kHz
18 kHz
25 kHz
1.3 MHz

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

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

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Alternating Current and Voltage
The average half-cycle value of a sine wave with a 40 V peak is

14.14 V
6.37 V
25.48 V
50.96 V

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Alternating Current and Voltage
A phasor represents

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

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