If the applied voltage to a dc machine is 230 V, then the back emf, for maximum power developed is
115 V
If the applied voltage to a dc machine is 230 V, then the back emf, for maximum power developed is 115 V.
A dc shunt motor is driving a constant torque load with normal excitation. If the filed current is halved then the motor will run at
A dc shunt motor is driving a mechanical load at rated voltage with normal excitation. If the load torque is increased to double of the normal one, the speed of the motor will