Question

In a half wave rectifier, the input sine wave is 200sin200 ᴨt Volts. If load resistance is of 1k then the average DC power output of half wave rectifier is __________

(a) 3.25W

(b) 4.05W

(c) 5.02W

(d) 6.25W

The question was asked in an interview for job.

This interesting question is from Halfwave Rectifier in division Diode Circuit of Analog Circuits

Answer 1

Right answer is (b) 4.05W

Easiest explanation: The equation of sine wave is in the form Em sin wt.

On comparing Em = 200

Power = Em^2/ ᴨ^2RL = 200/ ᴨ^2x 1000.