Calculate the drift speed of the electrons when a current of exists in a copper wire…

PHYSICS · Numerical · A Level · Physics · Electricity · Electricity

Problem

Calculate the drift speed of the electrons when a current of

1\,\mathrm{A}

exists in a copper wire of cross-sectional area

2\,\mathrm{mm}^2

. The number of free electrons in

1\,\mathrm{cm}^3

of copper is

8.5\times10^{22}

.

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