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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
16.54 V
10.60 V
5.93 V

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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
25.48 V
14.14 V
50.96 V

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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
When a sine wave has a frequency of 100 Hz in 12 s it goes through

120 cycles
1,200 cycles
12 cycles
1/100 cycle

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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
22.6 mA
39.6 mA
45.12 mA

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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

1.6 V
4 V
11 V
4.6 V

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