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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A motor operating on 120 V draws a current of 2 A. If the heat is developed in the motor at the rate of 9 cal/s, what is its efficiency ?

A motor operating on 120 V draws a current of 2 A. If the heat is developed in the motor at the rate of 9 cal/s, what is its efficiency ?

A motor operating on 120 V draws a current of 2 A. If the heat is developed in the motor at the rate of 9 cal/s what is its efficiency ?