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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

1.65 V
10.60 V
5.93 V
16.54 V

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Alternating Current and Voltage
A square wave has a period of 60 s. The first odd harmonic is

50 kHz
5 kHz
500 kHz
33.33 kHz

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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%
25%
100%
50%

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Alternating Current and Voltage
If a sine wave goes through 10 cycles in 20 s, the period is

2 s
4 s
20 s
100 s

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Alternating Current and Voltage
A sinusoidal current has an rms value of 14 mA. The peak-to-peak value is

16 mA
39.6 mA
22.6 mA
45.12 mA

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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

100 Hz
400 Hz
indeterminable
40 Hz

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