EXAMIANS
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
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A waveform has a baseline of 3 V, a duty cycle of 20%, and an amplitude of 8 V. The average voltage value is
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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?
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A sine wave with a period of 4 ms is changing at a faster rate than a sine wave with a period of
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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
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A 20 kHz pulse waveform consists of pulses that are 15 s wide. The duty cycle
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A sinusoidal current has an rms value of 14 mA. The peak-to-peak value is
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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
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If the rms current through a 4.7 k resistor is 4 mA, the peak voltage drop across the resistor is
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A signal with a 400 s period has a frequency of
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