In a D.C. generator in order to reduce sparking at brushes, the self-i – McqOptions

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1.	In a D.C. generator in order to reduce sparking at brushes, the self-induced e.m.f. in the coil is neutralized by all of the following except?
A.	Interpoles
B.	Dummy coils
C.	Compensating winding
D.	Shifting of axis of brushes
Answer» C. Compensating winding

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