"normanstrong" writes:
On Thu, 08 Jan 2004 18:19:25 GMT,
wrote:
How
little resistance -- in particular current dependent
resistance -- can be detected?
Be careful about the use of the term "current dependent
resistance." Most of the effects are due to the
temperature coefficient. It is current dependent only to
the extent that the current affects the temperature.
Yes, indeed. That's what I was thinking of.
In fact, I don't know of any wire whose resistance is a
function of the current flowing through it, if the
temperature is held constant.
Superconductors. And if anyone makes any money by peddling
superconducting speaker cables as the next big thing, I want
a cut, please ;-)
--
Jón Fairbairn