In article ,
Ross Herbert wrote:
As others have described, A relay, whether DC or AC
is simply a coil of wire on a core of suitable magnetic material
(usually soft iron) with a closed magnetic loop which passes through
the pivoted armature.

Think 'magnetic material' is the wrong term. It is capable of being
momentarily magnetised - but isn't actually magnetic.

--
*What boots up must come down *

Dave Plowman London SW
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