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Alternating Current and Voltage
One sine wave has a positive-going zero crossing at 15° and another sine wave has a positive-going zero crossing at 55°. The phase angle between the two waveforms is
None of these
40°
0°
45°
None of these
40°
0°
45°
Answer
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Related Question
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
50 Hz
100 Hz
1,000 Hz
10 Hz
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
1%
50%
100%
25%
1%
50%
100%
25%
Answer
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Alternating Current and Voltage
If the peak of a sine wave is 13 V, the peak-to-peak value is
26 V
6.5 V
13 V
None of these
26 V
6.5 V
13 V
None of these
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
10.60 V
5.93 V
16.54 V
1.65 V
10.60 V
5.93 V
16.54 V
1.65 V
Answer
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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
2.66 V
4 V
26.6 V
18.8 V
2.66 V
4 V
Answer
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