Does maximum power transfer imply maximum efficiency? A. Yes

does-maximum-power-transfer-imply-maximum-efficiency-a-yes

Does maximum power transfer imply maximum efficiency?

A. Yes

B. No

C. Sometimes

D. Cannot be determined

This question was posed to me during an interview.

My query is from Maximum Power Transfer in portion Network Theorems of Basic Electrical Engineering

Right option is B. No

Easy explanation: Maximum power transfer does not imply maximum efficiency. If the load resistance is smaller than source resistance, the power dissipated at the load is reduced while most of the power is dissipated at the source then the efficiency becomes lower.