Which of the following brushes can be used for high values of current density ? (a) Metal graphite brushes (b) Hard carbon brushes (c) Electro-graphitic brushes (d) Natural graphite brushes

Which of the following brushes can be used for high values of current density ?
(a) Metal graphite brushes
(b) Hard carbon brushes
(c) Electro-graphitic brushes
(d) Natural graphite brushes
by

1 Answer

Answer :

(a) Metal graphite brushes
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