In a universal motor, the most common cause of brush sparking is
A)open armature winding
B)shorted armature winding
C)shorted field winding"
D)all of the above

Question

Quizplus · Accepted Answer

In a universal motor, brush sparking can be caused by various issues including open armature winding, shorted armature winding, and shorted field winding. Each of these conditions can disrupt the normal current flow or create imbalances in the magnetic fields, leading to sparking at the brushes.

In a Universal Motor, the Most Common Cause of Brush