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James W. Wheeler wrote:
But we often do an Ohmic heating lab in which a heating coil of nichrome
(or even a resistor) is immersed in water and the temperature rise is
limited to 5-10K.
On Thu, 12 Mar 1998, Leigh Palmer wrote:
David's idea of immersing a tungsten filament in a constant
temperature environment is invincibly problematic. It would be
possible to do such a thing if Joule heating could be ignored,
but it can't. I appreciate the theoretical approach to many
problems, but a dissipationless flow of current in an ohmic
substance is, I'm afraid, out there with the spherical cow.
Leigh
--
Stephen Luzader
Frostburg State University
Frostburg, MD
http://antoine.fsu.umd.edu/phys/luzader