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Alternating Current vs Direct Current MCQs

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Practice free Alternating Current vs Direct Current multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 41 questions — no login required.

Question 10easy
A sine wave reaches maximum positive voltage at:
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Question 11easy
Which percentages of full-amplitude rise time are used for a pulse wave?
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Question 12easy
What is the average value of a 12 V peak wave?
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Question 13easy
A test equipment item that has the ability to produce either square, triangular, or sawtooth waveforms is called:
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Question 14easy
What does the CRT oscilloscope display?
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Question 15easy
Power companies supply ac, not dc, because:
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Question 16easy
If a waveform period is determined to be 10 microseconds in duration, what is the frequency of the
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Question 17easy
The phase difference between sine waves of different frequencies is:
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Question 18easy
If a sine wave signal is 100 mV peak-to-peak, how many volts would be measured by a voltmeter?
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