Question

A sinusoidal voltage of peak to peak value of 310 V is connected in series with a diode and a load resistance R so that Half-wave rectification occurs. If the diode has a negligible forward resistance, the root mean square voltage across the load resistance is

(a) 310 V

(b) 155 V

(c) 109.5 V

(d) 77.5 V  

Answer 1

Correct option  (b) 155 V

Explanation:

V_rms  = V₀/2  = 310/2 = 155