"Ratch" wrote in message
et...

Your link gives two definitions of Ohm's law. The first is the one you
refer to above, in that R=resistivity*length/area. It is a resistance
formula for a conductor with known physical dimensions and resistivity,
but
it is not Ohm's law. .

Dead Banana. ( beating a dead horse dry )

After all, you are calling "the" English [ liars. ]

They coined Potential of Current to Flow = current * resistively of
length/area while Temperature is constant as Ohm's Law.
E = I * R
Voltage = Current * Resistance

"The" English named it after George Ohm.

What part did you fail to grasp ?

The cross section of the conductor has no bearing whatsoever on whether a
material is ohmic or not.

So a Cross Sectional Area of a 00awg Cable has the same ohmic value at
20,000 feet as a 24awg cable at 20,000 feet ?
Surely I'm missing your point.

If you have a conductor made out of a certain material, you can plot the V
vs I curve.

Using what gauge of certain material ?
Using what Temperature Conditions ??
Ever seen a P4 Processor smoke when a fan is not applied to it after a few
minutes of run time ??

If the curve is straight, it is ohmic regardless what the physical
dimensions are--even if the cross section varies from point to point.

If the curve is straight, even if the curve is straight.
This means your processor can not function. It is breaking your Ohm's Law.

If you understand that resistive linearity property of the material, then
you know Ohm's law

I understand the resistive linearity of certain materials that conduct
electrons verses certain materials that do not conduct electronics and each
has a chart that relies heavily on the Gauge of the material and
Temperature.

If you have a conductor made out of a certain material, you can plot the V
vs I curve.

I have a conductor made of air, using 240,012 volts of potential energy
flow, you claim I can determine the plot of Voltage verses Current. Without
having to know the gauge of the air or temperature and why either has an
effect on the current flowing between the potential energy flows. Benjamin
Franklin wrote several papers regarding such flows. You'll find them
interesting.