If residual magnetism is present in a D.C. generator, the induced e.m.f. at zero speedwill be

Related MCQs

• Following D.C. generator will be in a position to build up without any residual magnetism in the poles
• 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
• In D.C. machines the residual magnetism is of the order of
• Which of the following D.C. generators will be in a position to build up without any residual magnetism in the poles ?
• 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
• 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
• The losses occurring in a D.C. generator are given below. Which loss is likely to have highest proportion at rated load of the generator ?
• A separately excited generator as compared to a self-excited generator
• Which of the following components of a D.C, generator plays vital role for providing direct current of a D.C. 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