Home » Excessive sparking at the brushes may be caused due to DC Motor MCQs Excessive sparking at the brushes may be caused due to February 7, 2022 18 Views 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
Which of the following steps is likely to result in reduction of hysteresis loss in a D.C. generator ?