According to the figure below, wire section I of diameter DI = 8R and wire section2 of diameter D2- 4R connected by a tapered section. The wire is copper, itsresistivity = 1.69 x 10-8 Qm and carriers a current. Assume that the current isuniformly distributed across any cross-section area through the wire's width. Theelectric potential change V along the length L = 4 m shown in section 2 is 20 µV.The number of charge carriers per unit volume is 8.49 x 1028 m-3.What is the driftspeed of the conduction electrons in section.D1Dol(2)(1)O D

Answered: Image /qna-images/answer/292e1c27-217b-4f34-9865-6c3bc4ed0777.jpg

Answered: pered section. The wire is copp= = a…

pered section. The wire is copp= = a current. Assume that the curr rion area through the wire's widthn aL=4 m shown in section 2 is 2 me is 8.49 x 1020 m-³.What is the

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

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.

Question

According to the figure below, wire section I of diameter DI = 8R and wire section
2 of diameter D2- 4R connected by a tapered section. The wire is copper, its
resistivity = 1.69 x 10-8 Qm and carriers a current. Assume that the current is
uniformly distributed across any cross-section area through the wire's width. The
electric potential change V along the length L = 4 m shown in section 2 is 20 µV.
The number of charge carriers per unit volume is 8.49 x 1028 m-3.What is the drift
speed of the conduction electrons in section.
D1
Dol
(2)
(1)
O D

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