Re: [Phys-l] Thermal heating in a resistor?

[Brian Whatcott <betwys1@sbcglobal.net>]

http://www.athena-spu.gr/~upperatmosphere/index.php/Joule_Heating
[an esu  item]

LaMontagne, Bob wrote:
> Hi Brian,
>
> Could you please post the link - it's an area of interest to me.
>
> Bob LaMontagne
>
> -----Original Message-----
>
>
> John Clement wrote:
>   
> > > Why is the formula P=I^2R used to describe thermal power loss in resistor
> > > instead of P=IV or P=V^2/R? Is this just the textbook author's choice of
> > > formula?
> > > -Tony
> > > --
> > > Tony Wayne /snip/
> > >       
> > I have just come across an extremely likely explanation for this usage.
> > This is called the Joule-Lenz law or Joule's first law. /snip/
> > John M. Clement
> >     
> /snip/
> Taking a google straw poll however, I see that 'ohmic heating' or 'ohmic 
> dissipation'  is now preferred  to Joule heating (apparently) in physics contexts.   I expect it is unfair to notice that at least one physics paper in atmospheric physics now equates Joule heating with 'frictional heating' in referring to the interaction of charged winds with magnetic and electric field effects.
>
> Brian W