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There is a long solid conductor of resis...

There is a long solid conductor of resistivity `rho=1times10^(-5)Omega`-m,surrounded by air.There is a steady electric current along the length of the conductor.At point 'P' just outside the cylinder the electric field strength `E=10^(-4)V/m` is directed at an angle of `alpha` to the normal to the surface.Find the current density in the conductor in the vicinity of point 'P'

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