1.

A sinusoidal voltage of peak value 200 volt is connected to a diode and resistor R in the circuit shown so that half wave rectification occurs. If the forward resistance of the diode is negligible compared to R the rms voltage (in volt) across R is approximately

A.            200                                           
B.            100
C.            \[\frac{200}{\sqrt{2}}\]    
D.            280
Answer» C.            \[\frac{200}{\sqrt{2}}\]    


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