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Why the brushes used in dc machines are made of carbon not
from other metal?

Answers were Sorted based on User's Feedback

Why the brushes used in dc machines are made of carbon not from other metal?..

Answer / rajeshsan

Brushes with metal will lead arc and more wear & tear, Hence for large rating we will use carbon brushes. And for toy motor and very small motor use metal brushes.

Is This Answer Correct ?    5 Yes 0 No

Why the brushes used in dc machines are made of carbon not from other metal?..

Answer / mohanavel.u ,marg ltd

The carbon brushes are having the self lubricating capacity
and if metal is used it will lead to more wear and tear
produces spark and damage the armature.

Is This Answer Correct ?    4 Yes 1 No

Why the brushes used in dc machines are made of carbon not from other metal?..

Answer / pavan msh

brushes used in dc machines are mostly made of carbon bcz carbon is of low cost and also a good conductor

Is This Answer Correct ?    5 Yes 4 No

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