A small but measurable current of 15 x 10-10 a exists in


A small but measurable current of 1.5 x 10-10 A exists in a copper wire whose diameter is 2.7 mm. The number of charge carriers per unit volume is 8.49 x 1028m-3. Assuming the current is uniform, Compute the (a) current density and (b) electron drift speed.

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Physics: A small but measurable current of 15 x 10-10 a exists in
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