I was fiddling around with Lenz's law trying to derive and eqaution for the EMF induced in a spinning circular disc, in its application to magnetic braking. I had found one in a textbook, and I got to a point where I think I was close to fully deriving it, but I am lacking the last piece of knowledge needed to fill in the gap. The derivation so far is up on the web for download HERE.(adsbygoogle = window.adsbygoogle || []).push({});

Im sorry I could not post it up here, or up as a webpage but all the formula would have been a pain in the butt. This a small part of a project, but it is beyond its scope and is of little importance, and so is mainly for interest. Any help would be very much appreciated, so please download here.

Thanks for any help

Rich

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# Formula derivation - Magnetic induction in spinning discs - Magnetic braking

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