Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: Abolish Ohm's Law



At 11:09 3/13/98 -0600, you wrote:
....
One last note: electrical engineers like to define resistance as:
R = dV/dI. Thus avoiding our whole problem.

Gary Karshner

Hmmm...this looks like a familiar method of specifying the dynamic
resistance of say, a zener or avalanche diode.
One would be pleased to get the lowest possible value for this ratio,
for example 10 milliohms, while the diode maintains its nominal voltage
of (say) 6 volts across its terminals.
It is clear that nobody expects the diode to be passing 600 amps at this
point.

This same definition you offer, would evaluate a thermistor with a single
value in the same way. This device is specifically built as a non-linear
device - sometimes using semiconductor compounds - a device that apparently
also qualifies as "Ohmic" for David Bowman....


Whatcott Altus OK