Tuesday, October 8, 2013

In DC generators, armature reaction is produced actually by

In DC generators, armature reaction is produced actually by
(A) Its field current.
(B) Armature conductors.
(C) Field pole winding. 
(D) Load current in armature.

Explanatory answer:

Ans: D

Because load current in armature gives rise to armature mmf which react with main field mmf.

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