[SEL] Magneto coil question

[Robert L. Holtzer]

Jerry Evans wrote:
> Hi Guys,
>          Can anyone explain to me in simple terms why the steel core of a 
> coil (in this case a flywheel magneto coil) is made up of laminations.
>          Is there a scientific reason for this or is it just easier to 
> manufacture this way.
>          Is there a reason why this could not be a solid steel core (as in 
> a piece of steel laser cut to the right shape/size) ?
>          Many thanks for any explanations.
>
> Keep the revs up (or down)
> Jerry Evans
> Near Johannesburg in Sunny South Africa.
> Etched Brass Engine Plates made to order:
> <www.oldengine.org/members/evans/plates/index.htm>
>
>
>
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>   
Reduces heat due to eddy currents induced in the iron.

Bob Holtzer