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Alternating Current and Voltage

Alternating Current and Voltage
Two series resistors are connected to an ac source. If there are 7.5 V rms across one resistor and 4.2 V rms across the other, the peak source voltage is

16.54 V
10.60 V
5.93 V
1.65 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
800 rps
200 rps
1,600 rps

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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%
100%
25%
50%

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Alternating Current and Voltage
A phasor represents

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

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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
7.64 V
1.27 V

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

100 Hz
1,000 Hz
10 Hz
50 Hz

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