To get speed higher than the base speed of the dc shunt motor
A)armature resistance control is used
B)field resistance control is used
C)armature voltage control is used
D)none of these.

Question

Quizplus · Accepted Answer

To achieve speeds higher than the base speed of a DC shunt motor, field resistance control is used. By increasing the resistance in the field circuit, the field current decreases, which weakens the magnetic field. This allows the motor to run faster than its base speed to maintain the required back EMF.

To Get Speed Higher Than the Base Speed of the Dc