A moter operating or `120V` draw a current of `5A`. If the heat is developed in the motor at the one of `12` cells. What is in effeciency ?

A motor operating on 120V V draws a current of 2 A. if the heat is developed in the motor at the rate of 9 "cal"s^(-1) , what is its effciency?

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^(-1) , what is the 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^(-1) , what is the efficiency?

An electric motor operates on a 50V supply and draws a current of 12A. If the motor yields a mechanical power of 150W. What is the percentage efficiency of the motor?

An electric motor operates on a 50V supply and draws a current of 12A. If the motor yields a mechanical power of 150W. What is the percentage efficiency of the motor?

An electric motor operating on a 60 V dc supply draws a currrent of 10A . If the effeciency of the motor is 50% , the resistance of its winding is

An electric motor operates on a 110 V supply and draws a current of 10 A. If the motor yields a mechanical power of 330 watt, what is the efficiency of the motor ?

An electric motor operating on a 30V supply draws a current of 10A and yields mechanical power of 120W. What is the efficiency of the motor? How much energy is lost as heat in 2h?

An electric motor operating on a 50 V dc supply draws a current of 12 A . If the efficiency of the motor is 30 % ,estimate the resistance of the windings of the motor.

An electric motor operating on a 50V d.e. supply draws a current of 12A. If the efficiency of the motor is 30\%, estimate the resistance of the windings of the motor.