In the longitudinal equilibrium pinch assume that the radial dependence of the current density Jz (r) is such that Jz=0 for 0b calculate p(r), B theta(r) and plot. Show that ,as a tends to b, the magnetic pressure Btheta^2/2munot at r=b becomes equal to p at r=0; while as a tends to 0, B theta^2/2munot at r=b becomes equal to becomes equal to p at r=0.