A cylindrical conductor consisting of two different

regions is given in the figure. In the cylinder, the $ra$

region is filled with copper $(=5\mathrm{.}96{10}^7\frac{S}{m})$ and

the $=\{$:$3\mathrm{.}5{10}^7\frac{S}{m})z=z=LVV=10$VIVI$=\frac{V^2}{R}$