The correct answer is A. Square wave.
The peak factor is the ratio of the peak value of a waveform to its rms value. A square wave has a peak factor of 1.414, while a sine wave has a peak factor of 1. A half wave rectified sine wave has a peak factor of 1.111, and a triangular wave has a peak factor of 1.732.
A square wave is a periodic waveform with a constant amplitude and a period that is twice the time it takes for the wave to go from one extreme to the other. The sine wave is a periodic waveform with a constant amplitude and a period that is equal to the time it takes for the wave to go from one extreme to the other. The half wave
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