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A current of 10 A exists in a wire of cross-sectional area of \(5m{m}^{2}\) with a drift velocity of \(2\times {10}^{-3}…

Q1

A current of 10 A exists in a wire of cross-sectional area of \(5m{m}^{2}\) with a drift velocity of \(2\times {10}^{-3}m{s}^{-1}\). The number of free electrons in each cubic meter of the wire

a

\(2\times {10}^{25}\)

b

\(1\times {10}^{23}\)

c

\(2\times {10}^{6}\)

d

\(625\times {10}^{25}\)

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