A dc shunt motor is driving a constant torque load. On inserting an additional resistance in the armature circuit, the speed of the motor will
A. remain unchanged.
B. increase.
C. decrease.
D. be zero.
Answer:C
A dc shunt motor is driving a constant torque load. On inserting an additional resistance in the armature circuit, the speed of the motor will
A. remain unchanged. B. increase. C. decrease. D. be zero.