DC motors are stopped by operdng the line switches and not by ___

DC motors are stopped by operdng the line switches and not by forcing the handle of the motor starter back to the OFF position.

This i due to occurrence of

A. heavy sparking at the first stud of the starting resistance steps.
B. heavy sparking al the brushes
C. both (A) and (B).
D. none of these.

Show Answer

Answer: A

Share your understanding of this question with the correct explanation.