Further on the original question raised by Stephen A. Lawrence:
When an electron is accelerated in a nonuniform magnetic field
due to the electron's own (permanent) magnetic dipole, where
does the energy come from?
Hal Puthoff has suggested the following:
"In a nonuniform magnetic field, the acceleration of the electron
due to it's own magnetic field associated with spin parallels the
acceleration of a polarizable particle in a nonuniform electric
field (so-called dielectrophoresis). The electron (particle)
moves so as to reduce the magnetic (electric) field energy by
having the electron's (particle's) field cancel the magnetic
(electric) field strength. The force is given by the change in
field energy F = - grad (field energy). Thus the energy comes
from the original distributed field energy which is weakened by
the motion of the electron (particle) into a position to provide
partial cancellation."
Thanks to Hal Puthoff for that input
