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 neutralised 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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