Induction Heating (1 Viewer)

[Roobs]

I have one textbook (Jackaranda) that explains induction heating--i seem to understand it, but then i read the Surfing series sheets, and they say that induction heating only works for ferromagnetic (iron containing) pots--and copper and alluminium will stay cold--but make no mention of why

can someone expain this to me? my assumption was that the heating effect came from resistance to an induced current in the metal pot????

thanks

 

[alcalder]

Hey there Roobs. I too have Jacaranda and it explains Induction heating well. However, there is an additional effect going on in magnetic materials that is not happening in non-magnetic materials such as Copper.

http://www.ameritherm.com/aboutinduction.html

There is an effect called Hysteresis which can account for further heating in magnetic materials. Good ol' Wikipedia has articles on both Induction Heating and Heteresis.

Hope that helps.

 

[Forbidden.]

what the ? we learning induction heating in preliminary ?

I onnly know we learn in preliminary:

The World Communicates
Electricity in the Home
Moving About
Cosmic Engine

 

[Riviet]

what the ? we learning induction heating in preliminary ?

Induction is in the Motors and Generators topic of the HSC course. Roobs might be accelerating or doing the HSC over two years for some reason.