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_____________ is responsible for mechanical power output of a DC motor.

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_____________ is responsible for mechanical power output of a DC motor.

(a) Electrical input power

(b) Any of the mentioned

(c) Air-gap flux

(d) Armature emf

This question was posed to me in a national level competition.

My question is from Methods of Excitation topic in section DC Machines of Electrical Machines

1 Answer

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Best answer
Right answer is (a) Electrical input power

Best explanation: Primarily it is the electrical input power that starts the motoring action.

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