Q. Copper brushes in D.C. machine are used

(A) where low voltage and high currents are involved
(B) where high voltage and small cur-rents are involved
(C) in both of the above cases
(D) in none of the above cases

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✅ Correct Answer: (A) where low voltage and high currents are involved

Published by Nisha Gupta ⭐ 2.32K Points at 21-May-2023 11:09 am in D.C. Generators

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