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Alternating Current and Voltage

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

50 kHz
33.33 kHz
500 kHz
5 kHz

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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

18.8 V
2.66 V
4 V
26.6 V

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Alternating Current and Voltage
If the peak of a sine wave is 13 V, the peak-to-peak value is

13 V
6.5 V
None of these
26 V

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

50 Hz
100 Hz
1,000 Hz
10 Hz

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Alternating Current and Voltage
A phasor represents

the width of a quantity
the magnitude and a quantity direction
the magnitude of a quantity
the phase angle

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

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

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