At 2:03 PM 11/5/4, Terry Blanton wrote: >Frederick Sparber wrote: > >> Will a zinc rod carrying a current attract or repel a copper rod >> carrying a current in >> the opposite direction?? >> >> "In zinc however, conduction is dominated by the motion of positive >> charge carriers. Electrons in zinc that are excited from the valence >> band leave holes, which are vacancies (i.e., unfilled levels) that >> behave like positive charge carriers. The motion of these holes >> accounts for most of the conduction of electricity in zinc." > > >I though hole flow and electron flow were always equivalent. They teach >hole flow in the military due to so many being dug.
I suspect Fred is looking at the Lorentz paradox for holes. I've been there, done that. It doesn't work for a "warp" drive. Regards, Horace Heffner
