  The compensation of vertical drifts in toroidal magnetic fields through a
wave-driven poloidal rotation is compared to compensation through the wave
driven toroidal current generation to support the classical magnetic rotational
transform. The advantages and drawbacks associated with the sustainment of a
radial electric field are compared with those associated with the sustainment
of a poloidal magnetic field both in terms of energy content and power
dissipation. The energy content of a radial electric field is found to be
smaller than the energy content of a poloidal magnetic field for a similar set
of orbits. The wave driven radial electric field generation efficiency is
similarly shown, at least in the limit of large aspect ratio, to be larger than
the efficiency of wave-driven toroidal current generation.
