Originally posted by Rakarskiy
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That's great. Nice diagrams. Thanks.
To me, FEMM demonstrates that the lines do in fact cut the conductors as they change shape during rotation of the magnet. How else can a continuous loop (line) go from a short path (2nd graphic) to the full backiron path (1st graphic) without breaking and reconnecting, which doesn't happen?
But magnetic lines of force and cutting are just human constructs or imaginations to assist people to understand or visualize the process of a changing field in a structure and surrounding space and application of Faraday's Law, Ampere's circuital law and Lorentz principles.
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https://usuaris.tinet.cat/sje/femm/acgen.htm
acgen.gif
Added image and link.
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