What should be the diameter of an aluminum wire for its resistance to be equal to that of a copper wire which diameter is 2.17 mm? The two wires are of the same length.ρ (Copper) = 1.68 x 10-8 Ωmρ (Aluminum) = 2.65 x 10-8 Ωm Note: A = πd2/4

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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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What should be the diameter of an aluminum wire for its resistance to be equal to that of a copper wire which diameter is 2.17 mm? The two wires are of the same length.

ρ (Copper) = 1.68 x 10^-8Ωm

ρ (Aluminum) = 2.65 x 10^-8Ωm

Note: A = πd²/4

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