DC Generators
Wave winding is composed of

Any odd number of conductors
Any even number of conductors
That even number which is exact multiple of poles + 2
That even number which is exact multiple of poles

ANSWER DOWNLOAD EXAMIANS APP

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 immediately preceding pole
Is opposite to that of the main pole ahead
Is the same as that of the main pole ahead

ANSWER DOWNLOAD EXAMIANS APP