If the field of a D.C. shunt motor gets opened while motor is running
A)the speed of motor will be reduced %
B)the armature current will reduce
C)the motor will attain dangerously high speed 1
D)the motor will continue to nuvat constantspeed

Question

Quizplus · Accepted Answer

When the field of a DC shunt motor is opened, the field current drops to zero, causing the field flux to also drop to nearly zero. Since the speed of a DC motor is inversely proportional to its field flux (according to the formula N ∝ 1/Φ for a given constant voltage), the motor's speed will increase to a dangerously high level, potentially causing damage.

If the Field of a D