Physics, asked by abhinavhegde, 10 months ago

In a DC motor, how is polarity changed when brushes move above the gaps between commutators?

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Answered by ronpanch457

Answer:As the brushes pass over the gaps in the commutator, the supplied electrical charge switches commutator segments, which switches the electrical polarity of the armature coils. This switching of the polarity in the coils maintains the armature's rotation in one direction.

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