Re: Ohm's Law

[Joseph Bellina <jbellina@SAINTMARYS.EDU>]

I prefer to say that Ohm's Law is a statement about materials, ie,
resistance is a constant.  That other relation is just the definition of
resistance in terms of current and potential difference.

cheers

On Mon, 8 Nov
1999, Van E. Neie wrote:

> Is there any advantage to calling *V = IR Ohm's Law?  I have found that
> just calling it a fundamental relationship among *V, I and R is
> sufficient.  If you know two of these variables, you can find the
> third.  Whether the device is ohmic doesn't matter, right?
>
> Am I missing something?  The only reason I bring it up is that
> practically every elementary physics text refers to it as Ohm's Law, but
> often there is no mention of the conditions that must be satisfied.
>
> Thanks.
>
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