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A copper wire of uniform cross-sectional area 1.0 × 0-6 m2 carries a current of 1 A. Assuming that each copper atom contributes one electron to the electron gas, the drift velocity of the free electrons (density of copper is 8.94 × 103 kg/m3 and its atomic mass is 1.05 × 10-25 kg) is

A copper wire of uniform cross-sectional area 1.0 × 0-6 m2 carries a current of 1 A. Assuming that each copper atom contributes one electron to the electron gas, the drift velocity of the free electrons (density of copper is 8.94 × 103 kg/m3 and its atomic mass is 1.05 × 10-25 kg) is Correct Answer 7.4 × 10<sup>-5</sup> m/s

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