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Alternating Current and Voltage

Alternating Current and Voltage
The conductive loop on the rotor of a simple two-pole, single-phase generator rotates at a rate of 400 rps. The frequency of the induced output voltage is

40 Hz
indeterminable
100 Hz
400 Hz

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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

1.65 V
10.60 V
5.93 V
16.54 V

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

1,000 Hz
100 Hz
50 Hz
10 Hz

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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

26.6 V
18.8 V
4 V
2.66 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 30%
is 1%
is 100%
cannot be determined

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Alternating Current and Voltage
A phasor represents

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

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