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Alternating Current and Voltage

Alternating Current and Voltage
A sinusoidal current has an rms value of 14 mA. The peak-to-peak value is

39.6 mA
45.12 mA
16 mA
22.6 mA

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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
4 V
18.8 V
2.66 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
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
10.60 V
16.54 V
1.65 V

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

50 kHz
5 kHz
33.33 kHz
500 kHz

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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 15°.
Wave A leads wave B by 15°.
Wave A lags wave B by 105°.
Wave A leads wave B by 105°.

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