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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
16.54 V
1.65 V
10.60 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
1,600 rps
400 rps
800 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

40 Hz
400 Hz
100 Hz
indeterminable

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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

45°
40°
0°
None of these

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Alternating Current and Voltage
If the rms current through a 6.8 k resistor is 8 mA, the rms voltage drop across the resistor is

5.44 V
8 V
54.4 V
7.07 V

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Alternating Current and Voltage
A signal with a 400 s period has a frequency of

400 Hz
2,500 Hz
25,000 Hz
250 Hz

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