On Thu, 20 Mar 2008 16:58:41 -0700 (PDT), Pete C wrote:

Possibly. Or the design of the hob is that significant magnetic flux
leaks out underneath and will heat the metal work of the oven just like
it heats the pans on top...

Doubt it, otherwise the hob would cook itself ))

Good point... but of the construction of the hob could be such that there
are no circuits for the induced currents to flow in.

--
Cheers
Dave.