> > Ohms law is the *definition* of resistance. Unlike many
> > equations which are approximations, R always equals V/I.
>
> So then why isn't R=V/I the common form?

Because if you assume resistance is a constant (which is true for things
generally called "resistors" then the other forms of the statement
make sense.

And E=IR looks easier than R=E/I. Maybe.
--
D. Jay Newman           !
jay@sprucegrove.com     ! Xander: Giles, don't make cave-slayer unhappy.
http://enerd.ws/robots/ !

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