A simple current‐sheet model of a hydromagnetic shock is employed in an attempt to explain the origin of theB&thgr;andvpoloidalobserved previously in the hydromagnetic vortex rings produced in the conical &thgr; pinch. Although this simple model has its limitations, it nevertheless shows clearly that theB&thgr;and the vortex structure are due to Hall currents which are driven by shear in acceleration, and that the existence of any right handedness and left handedness and of the plasma vortex structure itself depends upon the fact that negative electricity (electrons) are light and positive electricity (protons) are heavy. The model also gives a plausible explanation and description of the origin of &thgr; rotation, i.e.,v&thgr;in the &thgr; pinch.