A rod of semiconducting material of Length L=5 m and cross-sectional area A=3 mm2 lies along the x-axis between x=0 and x=L. The material obeys ohm’s Law, and its resistivity varies along the rod according to ρ = ρ0*( 1 - x2/L2) where ρ0=4.5 x 10-4 Ω.m. The end of the rod at x=0 is at potential V0=25 V greater than the end at x=L. What is the total resistance, in units of Ω, of the rod? What is the current, in units of miliamperes, in the rod? What is the electric potential, in units of volt, in the rod at x=L/2? What is the electric-field magnitude E, in units of V/m, in the rod at x=L/2?
A rod of semiconducting material of Length L=5 m and cross-sectional area A=3 mm2 lies along the x-axis between x=0 and x=L. The material obeys ohm’s Law, and its resistivity varies along the rod according to ρ = ρ0*( 1 - x2/L2) where ρ0=4.5 x 10-4 Ω.m. The end of the rod at x=0 is at potential V0=25 V greater than the end at x=L. What is the total resistance, in units of Ω, of the rod? What is the current, in units of miliamperes, in the rod? What is the electric potential, in units of volt, in the rod at x=L/2? What is the electric-field magnitude E, in units of V/m, in the rod at x=L/2?
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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A rod of semiconducting material of Length L=5 m and cross-sectional area A=3 mm2 lies along the x-axis between x=0 and x=L. The material obeys ohm’s Law, and its resistivity varies along the rod according to ρ = ρ0*( 1 - x2/L2) where ρ0=4.5 x 10-4 Ω.m. The end of the rod at x=0 is at potential V0=25 V greater than the end at x=L.
What is the total resistance, in units of Ω, of the rod?
What is the current, in units of miliamperes, in the rod?
What is the electric potential, in units of volt, in the rod at x=L/2?
What is the electric-field magnitude E, in units of V/m, in the rod at x=L/2?
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