A dc shunt motor is driving a mechanical load at rated voltage and rated excitation. If the load torque becomes double, then the speed of the motor

Q. A dc shunt motor is driving a mechanical load at rated voltage and rated excitation. If the load torque becomes double, then the speed of the motor

A.            Increases slightly

B.            Decreases slightly

C.            Becomes double

D.            Becomes half

Answer: Decreases slightly