In article >,
Helpful person > wrote:

> On Monday, November 10, 2014 12:51:30 AM UTC-5, isw wrote:
> >
> > I'm pretty sure it's an inverse cube relation (theoretically, which
> > real-world devices rarely are), which makes minimizing the spacing even
> > more important.
> >
> > Isaac
>
> Inverse square law only refers to point sources. With extended
> sources or different geometries it does not apply.

Yup. And for magnetics, monopoles (which, AFAIK, are not yet being used
in induction cooktops.)

Isaac