In case of D.C. machine winding, number of commutator segments is equal to

Related MCQs

• The commutator segments are connected to the armature conductors by means of
• The insulating material used between the commutator segments is normally
• To avoid formation of grooves in the commutator of a D.C. machine
• The number of brushes in a commutator depends on
• For both lap and wave windings, there are as many commutator bars as the number of
• For a D.C. generator when the number of poles and the number of armature conductors is fixed, then which winding will give the higher e.m.f. ?
• Following energized winding of a D.C. machine should not be opened as it would produce high inductive voltage which may be dangerous to personnel and may cause its own insulation failure.
• In a commutator
• The material for commutator brushes is generally
• In D.C. generators, the brushes on commutator remain in contact with conductors which