Haveing a material that's 'ohmic' is not what the law is about.
You must have to realize how ridiculous this statement is? Engineers
for ages have been calling devices that obey Ohm's Law 'ohmic'.
Hence, Ohm's Law and 'ohmic' work the same. You need to do some
more reading im telling you! I'd like it if you could see this some day.
Here is a very simple illustration:
Take a regualted, adjustable power supply and connect a variable resistor.
Set up the power supply for constant volts.
Vary and volts and observe the current meter varying with the voltage.
Vary the resistance and observe the current meter varying inversly with resistance.
Ohm's law holds for both cases, hence Voltage, Current and Resistance are variables.
Now, set up the source for constant current.
Vary the current and observe voltage changes with current.
Vary the resistance and observe voltage changes with resistance (proportionally)
Ohm's law holds for all cases, hence Voltage, Current and Resistance are all variables.
The thing is, i could do a ton of experiments to show just what you did:
that when you setup and perform experiments you have to get the
procedure down perfectly right in order to get the same results that
anyone else performing the same experiment would get.
You set up and performed a different experiment than Ohm did, hence
you are getting different conclusions. The conclusion that Ohm
reached is MUCH SIMPLER than that! It's a simple experiment!
Vary the voltage OR the current and see what happens to the other.
That's all there is to it.
It's funny too because i already talked about the case where we swapped
a 10 ohm resistor for a 20 ohm resistor or vice versa. We already know
that it holds for both resistors, but the experiments are independent of
each other. Yes, you can choose any conductor, but once you choose
the conductor you're stuck with it. You cant swap it out in the middle
of the experiment or you are doing something else.
If you dont want to believe this then at least show what you think
the definition of 'ohmic' is please?
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