Current density related to cross-sectional area and current

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A small but measurable current of 1.6 10-10A exists in a copper wire whose diameter is 3.1 mm. suppose the current is uniform.

1) Compute the current density.

2) Compute the electron drift speed.

How is current density related to cross-sectional area and (uniformly distributed) current? How is current density related to the drift speed of the conduction electrons?

Reference no: EM13673360

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