Simple Derivation of RMF Drive
Depends on resistive axial oscillation of electrons, jz = Jzei(?t-?) in the RMF axial electric field. The current is reduced by the Hall term, which allows deep penetration.
RMF drive term ?jzBr ?/ne = (me/e)(?ce2/2?//)?r. Compare to (me??/e)vez.
If fully penetrated then Ez = ?rBr and get nearly synchronous rotation with ve? = ?r/(1 + 2/?2) where ? = ?ce/?. ?ce = eB?/me ? = (?// ??)1/2