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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
5.93 V
16.54 V
10.60 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
1 mA
1.5 mA
10 mA

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Alternating Current and Voltage
If the rms current through a 4.7 k resistor is 4 mA, the peak voltage drop across the resistor is

2.66 V
26.6 V
18.8 V
4 V

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

5 kHz
50 kHz
33.33 kHz
500 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

25%
50%
1%
100%

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

0 V
1.27 V
6.37 V
7.64 V

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