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Question

If a full wave rectifier circuit is operating from 50 Hz mains, the fundamental frequency in the ripple will be

A
25 Hz
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B
50 Hz
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C
70.7 Hz
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D
100 Hz
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Solution

The correct option is C 100 Hz
In full wave rectifier, two diodes are used to rectify the input A.C. voltage into D.C. voltage. Hence, for each cycle of input signal pulsating, unidirectional output will obtain. Thus, the fundamental frequency in the ripple will be doubled, i.e., 100 Hz.

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