Sparking at the commutator of a D.C. motor may result in

Related MCQs

• Sparking, is discouraged in a D.C. motor because
• In a D.C. generator in order to reduce sparking at brushes, the self-induced e.m.f. in the coil is neutralised by all of the following except
• By looking at which part of the motor, it can be easily confirmedthat a particular motor is D.C. motor?
• Flywheel is used with D.C. compound motor to reduce the peak demand by the motor, compound motor will have to be
• The commutator segments are connected to the armature conductors by means of
• In a commutator
• The material for commutator brushes is generally
• The insulating material used between the commutator segments is normally
• In D.C. generators, the brushes on commutator remain in contact with conductors which
• In case of D.C. machine winding, number of commutator segments is equal to