The armature reaction in d.c. machine causes distortion in the main f – McqOptions

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1.	The armature reaction in d.c. machine causes distortion in the main field flux. This effect of armature reaction can be reduced by
A.	Increasing the length of air gap
B.	Decreasing the length of air gap
C.	Increasing the number of poles
D.	Decreasing the number of poles
Answer» B. Decreasing the length of air gap

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