Question

In a motor, the ___of output work to input work, expressed as a percentage, is the efficiency of the motor.

Answer 1

ratio is correct answer to be filled in blank space.....

Hope it helps :)

Answer 2

Efficiency of the motor expressed in terms of percentage as the “ratio” of output to input work.

Explanation:

In technical words motor efficiency is defined as measure of ability of motor to convert electrical to mechanical energy.

In simple words it is ratio of output to input power gives the efficiency expressed in terms of percentage.

And so is the work ratio expresses the efficiency. As the work, power and energy are all related term and are mostly equal in relation to the equipment of motion used.