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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

5.93 V
1.65 V
16.54 V
10.60 V

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Alternating Current and Voltage
One sine wave has a positive-going zero crossing at 15° and another sine wave has a positive-going zero crossing at 55°. The phase angle between the two waveforms is

0°
40°
None of these
45°

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Alternating Current and Voltage
A waveform has a baseline of 3 V, a duty cycle of 20%, and an amplitude of 8 V. The average voltage value is

4 V
4.6 V
11 V
1.6 V

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

200 rps
800 rps
400 rps
1,600 rps

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

6.37 V
1.27 V
0 V
7.64 V

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Alternating Current and Voltage
How many degrees are there in /3 rad?

180°
60°
27°
6°

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