> So how does this apply to any other arrangement?  It's
> not like you can vary ANY ONE of the parameters without
> affecting the others.  i.e. varying voltage across a
> fixed resistance changes the current, changing the
> current through a fixed resistance varies the voltage
> across the resistance.  It's basic maths, given one
> fixed parameter the Ohms law states the other two are
> either proportional or inversely proportional to each
> other.  You can hardly single out one arrangement of the
> formulae and say it's not valid.

Noone said that any of the arrangements were invalid.  I
was looking for the more "natural" way to express it
because I assumed only V and R could be manipulated
directly.  However, several have pointed out that I
(current) can also be manipulated directly, which I did
not know.  (I still don't understand how but that's ok
for now I guess).

In any case, I still think I=V/R is more intuitive for
the beginner. Different batteries and resistor values can
be plugged in to cause a change in I.  At least it helps
my view of the world....

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