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Alternating Current and Voltage

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

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

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

180°
60°
27°
6°

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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
A square wave has a period of 60 s. The first odd harmonic is

500 kHz
5 kHz
50 kHz
33.33 kHz

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Alternating Current and Voltage
When a sine wave has a frequency of 100 Hz in 12 s it goes through

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

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

100 Hz
1,000 Hz
10 Hz
50 Hz

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