Practically in d.c. machines, it may happen that the emf induced in di – McqOptions

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1.	Practically in d.c. machines, it may happen that the emf induced in different parallel paths may not be same. This will cause inequality in brush arm currents and will give rise to copper losses. These effects can be avoided by using
A.	Compensating windings
B.	Interpoles
C.	Equalizer rings
D.	All of these
Answer» D. All of these

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