Find what the magnitude of the current density in the wire

Reference no: EM13669258

A copper wire has a square cross section a on a side. The wire is L long and carries a current of I. The density of free electrons is n_e.

A) Estimate the magnitude of the current density in the wire.

B) Estimate the magnitude of the electric field in the wire. Take the resistivity of copper to be ρ.

C) Determine how much time is required for an electron to travel the length of the wire? Use e for the magnitude of the charge on an electron.

Reference no: EM13669258

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