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(a) Estimate the average drift speed of ...

(a) Estimate the average drift speed of conduction electrons in a copper wire of cross sectional area `1.0xx10^(-7) m^2` carrying a current of 1.5 A. Assume that each copper atom contributes roughly one conduction electron. The density of copper is `9.0xx10^3 kgm^(-3)` and its atomic mass is `63.5 u.` (b) Compare the drift speed obtained with the speed of propagation of electric field along the conductor, which causes the drift motion.

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