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October 21, 2014

Homework Help: Physics

Posted by abdul rahman on Sunday, April 7, 2013 at 5:17am.

A long coaxial cable consists of two concentric conductors. The inner conductor is a cylinder with radius R1, and it carries a current I0 uniformly distributed over its cross section. The outer conductor is a cylindrical shell with inner radius R2 and outer radius R3. It carries a current I0 that is also uniformly distributed over its cross section, and that is opposite in direction to the current of the inner conductor. Calculate the magnetic field B as a function of the distance R from the axis.

a)find magnitude of the magnetic field for 0 < r < R1

b)Find magnetic field for R1 < r < R2

c)find magnitude of the magnetic field for R2 < r < R3

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