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In DC generators, current is fed up to the external circuit from armature through _______

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In DC generators, current is fed up to the external circuit from armature through _______

(a) Commutator

(b) Direct wire

(c) Slip rings

(d) Cannot be determined

The question was asked in final exam.

Origin of the question is Brushes and Commutator Assembly topic in division DC Machines of DC Machines

1 Answer

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Best answer
The correct option is (a) Commutator

Best explanation: In any rotary machine current is induced in Sine wave format, according to Faraday’s law. For DC machine commutator provides mechanical rectification so that output is in the unidirectional format.

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