On Sat, 28 Apr 2007 17:38:04 GMT, Phil Hobbs
wrote:

Michael A. Terrell wrote:
cledus wrote:
SuperM wrote:
Same as posted a few years ago.

I had a prof that referred to it as "Ohm's opinion" :-)


Did you get your money back?



It's sort of interesting that the linearity of resistance is primarily a
material property, whereas the linearity of reactance is primarily due
to the linearity of Maxwell's equations (ferromagnets apart).



Which means that resistance isn't truly linear, whereas reactance can
be. So Maxwell made laws, but Ohm didn't.

Aside from all the temperature and Hall and voltage coefficient stuff,
does pure carrier density modulate conductivity in metallic
conductors? You know, some vaguely superconductor/phonon
charge-interaction type effects? The shot noise thing implies charge
interaction.

John