5. Large sheets of surface current density are arranged as follows: K = -Kx flows at y = -a and K = +Kx flows at y = +a. In the region -a < y < a, there are alternating layers of diamagnetic and paramagnetic materials, with Xm = -10^-4 and Xm = +10^-3, respectively. Find the B field in each type of layer and make properly scaled and labeled plots of Bz(y) and Kpx(y) showing the variation across four layers (two of each type). You can assume the leftmost layer is diamagnetic.