The drift speed in a copper wire is 7.15 x 105 m/s for a typical electron current. Calculate the magnitude of the electric field E inside the copper wire. The mobility of mobile electrons in copper is 4.5 x 103 (m/s)/(N/C). (Note that though the electric field in the wire is very small, it is adequate to push a sizable electron current through the copper wire.) i N/C eTextbook and Media

The drift speed in a copper wire is 7.15 x 105 m/s for a typical electron current. Calculate the magnitude of the electric field E inside the copper wire. The mobility of mobile electrons in copper is 4.5 x 103 (m/s)/(N/C). (Note that though the electric field in the wire is very small, it is adequate to push a sizable electron current through the copper wire.) i N/C eTextbook and Media

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.

Question

The drift speed in a copper wire is 7.15 x 105 m/s for a typical electron current. Calculate the magnitude of the electric field E inside
the copper wire. The mobility of mobile electrons in copper is 4.5 x 10-3 (m/s)/(N/C). (Note that though the electric field in the wire is
very small, it is adequate to push a sizable electron current through the copper wire.)
i
N/C
eTextbook and Media

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