A cylindrical plasma column of radius a contains a coaxial magnetic field B=Bo z and has a pressure profile
p=po cos^2(pi*r/2a.
calculate the maximum value of po
using this value of p[o calculate the diamagnetic current j(r) and the total field B(r).
if the cylinder is bent into a torus with the lines of force closing upon themselves after a single turn this equilibrium in which the macroscopib forces are everywhere balanced is obviously disturbed. Is it possible to redistribute the pressure p(r,theta) in such a way that the equilibrium is restored