The number of brushes in a commutator depends on

Related MCQs

• The material for commutator brushes is generally
• In D.C. generators, the brushes on commutator remain in contact with conductors which
• If brushes of a D.C. generator are moved in order to bring these brushes in magnetic neutral axis, there will be
• In case of D.C. machine winding, number of commutator segments is equal to
• In lap winding, the number of brushes is always
• Sparking at the commutator of a D.C. motor may result in
• The commutator segments are connected to the armature conductors by means of
• In a commutator
• The insulating material used between the commutator segments is normally
• To avoid formation of grooves in the commutator of a D.C. machine