In article , Phil Munro wrote:
I hope it doesn't!!! Ohm's Law is: V = I * R. That is, voltage-
across equals current-in times resistance-of.

And resistance varies inversely with the square of the conductor diameter.

Also, current is not limited by cross section in the several-amp
currents we are talking about here. Rather, for a given size wire
the current is proportional to the voltage between its ends. --Phil

And to the length of the wire. Further, the constant of proportionality is
different for different sizes of wire.

"Dan C" claimed that the resistances of 18- and 24-ga conductors are
identical. That is patently false.

--
Regards,
Doug Miller (alphageek at milmac dot com)

Nobody ever left footprints in the sands of time by sitting on his butt.
And who wants to leave buttprints in the sands of time?