(a) In a section of wire of cross sectional area A, length Ax, where the charge carriers with charge q are moving with a drift velocity Va. If n is the mobile charge per unit volume (carrier density), what is the current generated by the moving charge carriers? (b) If this is a copper wire with a carrier n=8.49x1028 electron/m2, cross sectional area 3.31x10- 6 m2, and a 10A current running in it. What is the drift velocity of the carriers in the copper wire, knowing that an electron has 1.6x10-19 Coulomb?

(a) In a section of wire of cross sectional area A, length Ax, where the charge carriers with charge q are moving with a drift velocity Va. If n is the mobile charge per unit volume (carrier density), what is the current generated by the moving charge carriers? (b) If this is a copper wire with a carrier n=8.49x1028 electron/m2, cross sectional area 3.31x10- 6 m2, and a 10A current running in it. What is the drift velocity of the carriers in the copper wire, knowing that an electron has 1.6x10-19 Coulomb?

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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Question

(a) In a section of wire of cross sectional area A, length Ax, where
the charge carriers with charge q are moving with a drift velocity Va. If n is the mobile charge
per unit volume (carrier density), what is the current generated by the moving charge carriers?
(b) If this is a copper wire with a carrier n=8.49x1028 electron/m2, cross sectional area 3.31x10-
6 m2, and a 10A current running in it. What is the drift velocity of the carriers in the copper
wire, knowing that an electron has 1.6x10-19 Coulomb?

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