DC Generators In D.C. generators the polarity of the interpoles Is neutral as these poles do not play part in generating e.m.f. Is the same as that of the main pole ahead Is opposite to that of the main pole ahead Is the same as that of the immediately preceding pole Is neutral as these poles do not play part in generating e.m.f. Is the same as that of the main pole ahead Is opposite to that of the main pole ahead Is the same as that of the immediately preceding pole ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a four-pole D.C. machine All the four poles are south poles Alternate poles are north and south Two north poles follow two south poles All the four poles are north poles All the four poles are south poles Alternate poles are north and south Two north poles follow two south poles All the four poles are north poles ANSWER DOWNLOAD EXAMIANS APP
DC Generators Dc machines which are subjected to abrupt changes of load are provided with Interpole windings Copper brushes Compensating windings Equalisers Interpole windings Copper brushes Compensating windings Equalisers ANSWER DOWNLOAD EXAMIANS APP
DC Generators The size of a dc generator can be reduced by using ______ Magnetic material of high permeability Lap winding Iron commutator High resistance winding material Magnetic material of high permeability Lap winding Iron commutator High resistance winding material ANSWER DOWNLOAD EXAMIANS APP
DC Generators As a result of armature reaction, the reduction in the total mutual air gap flux in a D.C. generator is approximately 25 percent 5 percent 10 percent 40 percent 25 percent 5 percent 10 percent 40 percent ANSWER DOWNLOAD EXAMIANS APP
DC Generators In D.C. generators, the brushes on commutator remain in contact with conductors which Lie under South Pole Are farthest from the poles Lie under North Pole Lie under interpolar region Lie under South Pole Are farthest from the poles Lie under North Pole Lie under interpolar region ANSWER DOWNLOAD EXAMIANS APP
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