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DC average current of a bridge full wave rectifier (where Im is the maximum peak current of input).

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DC average current of a bridge full wave rectifier (where Im is the maximum peak current of input).

(a) 2Im

(b) Im

(c) Im/2

(d) 1.414Im

I had been asked this question during an internship interview.

Asked question is from Bridge Rectifier in section Application of Diodes of Electronic Devices & Circuits

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The correct choice is (b) Im

Easiest explanation: Average DC current of half wave rectifier is Im. Since output of half wave rectifier contains only one half of the input. The average value is the half of the area of one half cycle of sine wave with peak Im. This is equal to Im.

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