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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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Related Question
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
400 Hz
40 Hz
100 Hz
indeterminable
400 Hz
40 Hz
100 Hz
indeterminable
Answer
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Alternating Current and Voltage
Sine wave A has a positive-going zero crossing at 45°. Sine wave B has a positive-going zero crossing at 60°. Which of the following statements is true?
Wave A lags wave B by 105°.
Wave A leads wave B by 15°.
Wave A leads wave B by 105°.
Wave A lags wave B by 15°.
Wave A lags wave B by 105°.
Wave A leads wave B by 15°.
Wave A leads wave B by 105°.
Wave A lags wave B by 15°.
Answer
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Alternating Current and Voltage
A signal with a 400 s period has a frequency of
25,000 Hz
400 Hz
2,500 Hz
250 Hz
25,000 Hz
400 Hz
2,500 Hz
250 Hz
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
10.60 V
1.65 V
5.93 V
16.54 V
10.60 V
1.65 V
Answer
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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
120 cycles
12 cycles
1,200 cycles
1/100 cycle
120 cycles
12 cycles
Answer
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