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Alternating Current and Voltage

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

4.6 V
4 V
1.6 V
11 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
14.14 V
25.48 V
50.96 V

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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

5.93 V
16.54 V
1.65 V
10.60 V

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Alternating Current and Voltage
A 20 kHz pulse waveform consists of pulses that are 15 s wide. The duty cycle

is 1%
is 30%
cannot be determined
is 100%

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Alternating Current and Voltage
How many degrees are there in /3 rad?

180°
6°
60°
27°

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

50 Hz
10 Hz
1,000 Hz
100 Hz

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