14EX: a copper wire ,area cross section is 4mm²,and length 2m, resistivity 1.7x10- 2.m at 20 °C, FIND 1-resistance of wire 2- voltage difference at the ends of wire when current pass is 10 3- conductivity.

14EX: a copper wire ,area cross section is 4mm²,and length 2m, resistivity 1.7x10- 2.m at 20 °C, FIND 1-resistance of wire 2- voltage difference at the ends of wire when current pass is 10 3- conductivity.

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

14EX: a copper wire ,area cross section is 4mm?,and length 2m,
resistivity 1.7x10-8 2.m at 20 °C, FIND
1-resistance of wire
2- voltage difference at the ends of wire when current pass is 10
3- conductivity.
4-drift velocity if N=8.5x10 28 e/m3

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