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Alternating Current and Voltage

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

20 s
2 s
100 s
4 s

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

6.37 V
50.96 V
25.48 V
14.14 V

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

39.6 mA
22.6 mA
45.12 mA
16 mA

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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

10.60 V
5.93 V
16.54 V
1.65 V

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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

11 V
1.6 V
4 V
4.6 V

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

10 Hz
1,000 Hz
100 Hz
50 Hz

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