The purpose of providing dummy coils in a generator is

Related MCQs

• 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 generator A and B will be
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• The field coils of D.C. generator are usually made of
• In case of a 4-pole D.C. generator provided with a two layer lap winding with sixteen coils, the pole pitch will be
• A separately excited generator as compared to a self-excited generator
• The e.m.f. generated by a shunt wound D.C. generator isE. Now while pole flux remains constant, if the speed of the generator is doubled, the e.m.f. generated will be
• The armature of D.C. generator is laminated 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. ?
• If brushes of a D.C. generator are moved in order to bring these brushes in magnetic neutral axis, there will be
• Welding generator will have