[SEL] Magneto coil question

[Jerry Evans]

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>