In D.C. generators the polarity of the interpoles________?
Ais the same as that of the immediately preceding pole
Bis the same as that of the main pole ahead
Cis opposite to that of the main pole ahead
Dis neutral as these poles do not play part in generating e.m.f.
Correct answer
B. is the same as that of the main pole ahead
Explanation
The correct answer is is the same as that of the main pole ahead.