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Why material of brush is carbon in motors why not other
material.
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Answer Posted / k.prakashchandra
1.A good conductor 2.Can be reshaped easily to suit the
brush holder 3. Chemically inert 4. Does not erode the
commutator segments 5.Does not wear away easily 6.Dust
easily blown away by the cooling air,as being light 7.Not
costly 8. Easily available .(It is used in the form of graphite)
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