1.

If input power and output power of an electric motor are 540 W and 382 W respectively. Then the efficiency is: A. 100% B. 91% C. 71% D. 51%​

Answer»

The efficiency of motor = 71%Explanation:Efficiency of motor =  X 100 = [382/540] x 100 = 70.7 %∴ OPTION C is CORRECT



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