Suppose the conductivity of the material separating the cylinders in ( Fig 1 ) is not uniform ; specifically, o ( S ) = HS , for some conflant k. Find the resistance between the cylinders Hint: Because o Is a function Of Position, Eq V . E = - V. J = D does not hold, the Charge density is not zero in the resistance medium and E does not go like 1/5. But we do know that for steady currents I is the same across each cylindrical surface . Take it from there. L. radius of inner cylinder so radius of Outer cylinder = b Fig 1