Don Foreman wrote:

I suppose one might argue that there is no "turn" unless there is a
physical entity, separate from the core metal, that looks like a
shorted turn. OK, absent that it's an eddy current -- one honker of
an eddy current!


It is the "shorted turn" concept I have a problem with. A powdered iron
toroid core will show a low DC resistance. It will, however support a
respectable flux density due to the distributed air gaps (or, if you
prefer, multiple domains) in it.

Kevin Gallimore

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