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.

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 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 50 volt D.C. supply draws a current of 10 amp. If the efficiency of motor is 40% then the resistance of the winding of the motor is

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

The efficiency of d.c. motor is given by eta =

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?