In a D.C. generator the ripples in the direct e.m.f. generated are reduced by

Related MCQs

• 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
• 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
• A shunt generator running at 1000 r.p.m. has generated e.m.f. as 200 V. If the speed increases to 1200 r.p.m., the generated e.m.f. will be nearly
• Which of the following components of a D.C, generator plays vital role for providing direct current of a D.C. generator ?
• A separately excited generator as compared to a self-excited generator
• The e.m.f. generated in a D.C. generator is directly proportional to
• The armature of D.C. generator is laminated to
• The field coils of D.C. generator are usually made 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. ?
• In case of a 4-pole D.C. generator provided with a two layer lap winding with sixteen coils, the pole pitch will be