Armature voltage control is suitable if d.c. machine is driven at constant HomeDC Motor MCQsArmature voltage control is suitable if d.c. machine is driven at constantQ. Armature voltage control is suitable if d.c. machine is driven at constantA. TorqueB. Magnetic fieldC. SpeedD. CurrentAnswer: Torque
A shunt motor is fitted with a field regulator for speed control. For constant torque load, the speed will be minimum when the resistance of the regulator is