A long straight wire of radius a carries a steady current the current – InterviewSolution

1.	A long straight wire of radius a carries a steady current the current is uniformly distributed over its cross section the ratio of the magnetic field B and B` at radial dis†an ce a/2 and 2a respectively from the axis of wire is
Answer» A long straight wire of radius a carries a steady current the current is uniformly distributed over its cross section the ratio of the magnetic field B and B` at radial dis†an ce a/2 and 2a respectively from the axis of wire is

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