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Physics, 18.01.2021 17:00 hayesgenniferozslxr

A copper wire 3.2 mm in diameter carries a 5.0 A current. The conduction electron density in copper is 8.49x1028 electrons/m3. Determine (a) the current density in the wire, and (b) the drift velocity of the free electrons. (c) Estimate the rms speed of electrons assuming they behave like an ideal gas at 20°C. Assume that one electron per Cu atom is free to move (the others remain bound to the atom).

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