In a d.c. machine, the armature mmf is – McqOptions

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1.	In a d.c. machine, the armature mmf is
A.	stationary w.r.t. armature.
B.	rotating w.r.t. field.
C.	stationary w.r.t. field.
D.	rotating w.r.t. brushes.
Answer» D. rotating w.r.t. brushes.

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