If the field winding connection of DC shunt motor is ___

If the field winding connection of DC shunt motor is changed

A. motor will become slow.
B. motor will not run.
C. It will run in opposite direction.
D. It will run in same direction.

Show Answer

Answer: C

Share your understanding of this question with the correct explanation.

If the field winding connection of a DC shunt motor is changed, the motor will run in the opposite direction.

The direction of rotation of a DC motor is determined by the interaction between the magnetic field produced by the field winding and the armature current. In a shunt motor, the field winding is connected in parallel with the armature winding.

If the field winding connection is changed, the polarity of the field winding will be reversed. This reversal of polarity will cause a change in the direction of the magnetic field produced by the field winding. As a result, the interaction between the field winding and the armature current will change, leading to a reversal in the direction of rotation of the motor.

Therefore, the correct answer is C: It will run in the opposite direction.