The figure below shows a long conducting coaxial cable and gives its radii (R1=0.12m, R2=0.51m, R3=1.09m). The outer cable has a uniform current density of J=241A/m², and the inner cable carries a current l=18.4A flowing in opposite direction. Assume that the currents in each wire is uniformly distributed over its cross section. Determine the magnitude of the magnetic field in terms of He at a distance r=0.84m from the center of the cable. Express your answer using one decimal place.

The figure below shows a long conducting coaxial cable and gives its radii (R1=0.12m, R2=0.51m, R3=1.09m). The outer cable has a uniform current density of J=241A/m², and the inner cable carries a current l=18.4A flowing in opposite direction. Assume that the currents in each wire is uniformly distributed over its cross section. Determine the magnitude of the magnetic field in terms of He at a distance r=0.84m from the center of the cable. Express your answer using one decimal place.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter31: Gauss’s Law For Magnetism And Ampère’s Law

Section: Chapter Questions

Problem 67PQ

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