First slide

Application of p-n junction diode rectifier

Question

A sinusoidal voltage of rms value of 200 volt is connected to the diode and a capacitor C in the circuit as shown, so that half wave rectification occurs. The final potential difference in volt across C is ____

Difficult

Solution

For normal sinusoidal voltage rms value is $\frac{V_{m}}{\sqrt{2}}$
For half wave rectified voltage rms value is $\frac{V_{m}}{2}$
Voltage across $C = 200 \frac{\sqrt{2}}{2} volt = 141 volt .$

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