Excessive sparking at the brushes may be caused due to
Q. Excessive sparking at the brushes may be caused due to
A. Unequal Space
B. Dirt in commutator
C. Overload
D. All of the above
Answer: All of the above
A. Unequal Space
B. Dirt in commutator
C. Overload
D. All of the above
Answer: All of the above