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A coaxial cable has an inside conductor of radius 'a' carrying a current 'I'.The current returns as a uniform current through the outside conductor with a inside radius 'b' and outside radius 'c'.What is the magnetic field at a distance 'r' from the center, for the following cases.
r<a, a<r<b, b<r<c, c<r
16 years ago

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drwls
You seem to have posted this twice
16 years ago

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