1.

Under the condition of maximum power efficiency is?(a) 100%(b) 0%(c) 30%(d) 50%I had been asked this question at a job interview.My question is taken from Maximum Power Transfer in chapter Network Theorems of Basic Electrical Engineering

Answer»

The correct OPTION is (d) 50%

For EXPLANATION: Efficiency=(Power OUTPUT/ Power input)*100.

Power Output=I^2RL, Power Input=I^2(RL+RS)

Under MAXIMUM power transfer conditions, RL=RS

Power Output=I^2RL; Power Input=2*I^2RL

Thus efficiency=50%.



Discussion

No Comment Found

Related InterviewSolutions