Electric Machines Mega Quiz 10

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

In D.C. generators, lap winding is used for

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

The voltage drop for which of the following types of brush can be expected to be least ?

The e.m.f. generated by a shunt wound D.C. generator is E. Now while pole flux remains constant, if the speed of the generator is doubled, the e.m.f. generated will be