In D.C. machines, ir order to prevent excessive distortion of field form by the armature reaction, the field mmf must be made Options: A . &nbspequal to that of armature mmf B . &nbspless in comparison with the armature mmf C . &nbsplarge in comparison with the armature mmf D . &nbspnone of the above

In D.C. machines, ir order to prevent excessive distortion of field form by the

Question

In D.C. machines, ir order to prevent excessive distortion of field form by the armature reaction, the field mmf must be made

Options:

A . equal to that of armature mmf

B . less in comparison with the armature mmf

C . large in comparison with the armature mmf

D . none of the above

Answer: Option C

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