The commutator segments are connected to the armature conductors by means of

Related MCQs

• The e.m.f. induced in the armature of a shunt generator is 600 V. The armature resistance is 0.1 ohm. If the armature current is 200 A, the terminal voltage will be
• In D.C. generators, the brushes on commutator remain in contact with conductors which
• The insulating material used between the commutator segments is normally
• In case of D.C. machine winding, number of commutator segments is equal to
• 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. ?
• Two generators A and B have 6-poles each. Generator A has wave wound armature while generator B has lap wound armature. The ratio of the induced e.m.f. is generatorA and B will be
• Sparking at the commutator of a D.C. motor may result in
• In a commutator
• The material for commutator brushes is generally
• The number of brushes in a commutator depends on