Answered: The density of free electrons in gold…

The density of free electrons in gold is 5.9 ×1028 m3. If a gold wire with diameter d = 5.0 mm carries a current of 2.9 A, find the drift velocity (in µm/s) of the electrons in the wire.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 9PQ

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Concept explainers

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.

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