Answered: hollow section 0 to R R

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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1. A hollow cylinder of length L, inner radius R_{1 ,}and radius R₃is filled with two different materials. From R₁to R_2,the space is filled with a material of resistivity p₁. From R₂to R₃, the space is filled with material of resistivity p₂.

a) Derive an equation for the resistance of this structure as current flows from R₁to R₃ (ALONG the radial direction, NOT along the length). Ignore edge effects.

b) If the total voltage across the object is V_o, find an expression for the current density along the objects ( i.e. find J(r)).

Take V= V_oat R₁ and V=0 at R₃

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