Multiple choice question for engineering Set 1 1. Efficiency of a centre tapped full wave rectifier is _________ a) 50% b) 46% c) 70% d) 81.2% 2. A full wave rectifier supplies a load of 1KΩ. The AC voltage applied to diodes is 220V (rms). If diode resistance is neglected, what is the ripple voltage?…

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