Question

why r carbon brushes used? ​

Answer 1

Answer:

hey mate ,

Carbon brushes are used to make contact of a stationary wire with rotating rotor. Most common use is with DC motor. ... The brushes are made of carbon because carbon is a reasonably good conductor of electricity and it is soft, so it makes good contact. However the brushes wear out and have to be replaced periodically.

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Answer 2

Answer:

Its use:- It acts as a sliding contact used to transform a electrical current from static(steady) to rotating part of motor or generator.

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