____ of DC motor reverses the direction of current through the coil every half cycle? Options (a) the brushes (b) the commutator (c) the armature (d) the split rings
1 Answer
Feb 1, 2018
The commutator
Explanation:
The commutator in a D.C. Motor is a pair(or more) of half-shells wrapped around the shaft of the armature and connected to the power source through the brushes. Each half turn of the armature causes the brushes to contact a new split ring, reversing the direction of current flow through the armature windings, which reverses the polarity of the electromagnetism produced in the armature.