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Power Electronics

Q1: A single phase half wave rectifier is feeding a resistive load. Input voltage v = Vm sin ωt. The output dc voltage is Vdc and output rms voltage is Vrms . If firing angle is 180°, Vdc and Vrms respectively are

A 0 and 0

B

C 0 and - Vm

D

ANS:A - 0 and 0

Put a = 180° in Eqs Otherwise also a = 180° means no conduction. Hence zero output voltage.



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