The missing Maxwell equation in magnetohydrodynamics

Summary form only given. It is shown that since its inception magnetohydrodynamics theory, MHD, has paid insufficient attention to that Maxwell equation which relates the electric field to excess charge. With reference to a recent review article on magnetic astrophysical plasmas the diffusive character and the validity region of the MHD theory are presented. The information contained in the missing Maxwell equation is exploited in an analysis of the distribution between plasma ions and electrons of angular momentum transferred by the total electromechanical torque tensor. In case of Hall effect, i.e. when the plasma electrons are free to gyrate magnetically, a strongly differing, whirlforming plasma description the Hall effect MHD replaces MHD. The poor results of magnetic confinement fusion research are explained, and arguments given for the existence of long-lived plasma structures, plasmoids or ball lightnings, in atmospheric air.