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Electronic Principles
Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage?
The voltage remains at one polarity and at a steady level
The voltage remains at one polarity but changes value periodically
The voltage causes current to flow in two directions at the same time
The voltage reverses polarity periodically
None of the above
Correct Answer:
The voltage remains at one polarity but changes value periodically
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