If the field of a DC 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
D. the motor will continue to run at constant speed
Answer:C
If the field of a DC 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 D. the motor will continue to run at constant speed
Explanation: For a constant back emf, flux is inversely proportional to the speed of the motor.