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Alternating Current and Voltage
If a sine wave goes through 10 cycles in 20 s, the period is
100 s
2 s
4 s
20 s
100 s
2 s
4 s
20 s
Answer
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Related Question
Alternating Current and Voltage
A sine wave of 15 kHz is changing at a faster rate than a sine wave with a frequency of
18 kHz
25 kHz
12 kHz
1.3 MHz
18 kHz
25 kHz
12 kHz
1.3 MHz
Answer
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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
5.93 V
16.54 V
1.65 V
10.60 V
Answer
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Alternating Current and Voltage
A phasor represents
the width of a quantity
the magnitude and a quantity direction
the phase angle
the magnitude of a quantity
the width of a quantity
the magnitude and a quantity direction
the phase angle
the magnitude of a quantity
Answer
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Alternating Current and Voltage
The average half-cycle value of a sine wave with a 40 V peak is
25.48 V
14.14 V
50.96 V
6.37 V
25.48 V
14.14 V
50.96 V
6.37 V
Answer
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Alternating Current and Voltage
A pulse waveform has a high time of 8 ms and a pulse width of 32 ms. The duty cycle is
25%
50%
1%
100%
25%
50%
1%
100%
Answer
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