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

Electrical Engineering Mcqs

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

(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

Submitted By :Ali Uppal

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