M

Mr. Dubey • 52.30K Points
Coach

Q. 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

(A) interpoles
(B) dummy coils
(C) compensating winding
(D) shifting of axis of brushes
Correct : Option (B)

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