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A long straight cylindrical wire of 4mm in diameter carrier a current uniformly distributed over its...

A long straight cylindrical wire of 4mm in diameter carrier a current uniformly distributed over its cross section. Assuming that wire is very long find magnetic field at the distance 0.01m from the wire. in μT, 2 significant figures (use Ampere's law)

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Answer #1

0.01m Curreat let the Current density is J. So the Th. (2x10 3, 1. Try 2 is 4 mm here the diameter So, im radius 2x10 3 12 2

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