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Alternating Current and Voltage

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

25%
1%
50%
100%

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

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

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

7.64 V
0 V
1.27 V
6.37 V

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Alternating Current and Voltage
If the rms voltage drop across a 15 k resistor is 16 V, the peak current through the resistor is

15 mA
10 mA
1 mA
1.5 mA

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Alternating Current and Voltage
A sine wave with an rms value of 12 V is riding on a dc level of 18 V. The maximum value of the resulting waveform is

0 V
35 V
30 V
6 V

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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

8 V
7.07 V
5.44 V
54.4 V

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