Question

A sinusoidal voltage of peak value 200 volt is connected to a diode and resistor R in the circuit figure, so that halfwave 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 1

The correct option is C $\frac{200}{\sqrt{2}}$

If half wave rectifier the output voltage is the RMS voltage
$=\frac{V_o}{\sqrt{2}}=\frac{200}{\sqrt{2}}$