M

Mr. Dubey • 52.33K Points
Coach 

Q. is DC motor and not an AC type?

(A) winding
(B) shaft
(C) commutator
(D) stator

Explanation: 
 all other parts except brushes and commutator are same in ac machine when outer looks are only taken in consideration. commutator is used only in dc machine for providing mechanical rectification and not in ac machine.

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