The rapid wear of brushes takes place due to Options: A . &nbspAbrasion from dust B . &nbspExcessive spring pressure C . &nbspRough commutator bars D . &nbspAll of the above factors

The rapid wear of brushes takes place due to

Question

The rapid wear of brushes takes place due to

Options:

A . Abrasion from dust

B . Excessive spring pressure

C . Rough commutator bars

D . All of the above factors

Answer: Option D

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