Copper contains 8.4 Times 10^28 free electrons per cubic meter. A copper wire of cross-sectional area...

Question

Question

science physics

Answer 1

Answer #1

given are

N=8.4*10^28 electrons

A=7.4*10^-7 m^2

I=1amp

using formula

I = nAve

v = I/(nAe)

v=1/8.4*10^28*7.4*10^-7*1.6*10^-19

v=0.01005*10^-2m/sec

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Answer 2

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