Hello everyone,

I have a neodymium N42 grade 10mm thick 50mm diameter magnet with surface field of 2450 Gauss equal to 0.245 Tesla. Base on calculations, repellant force between two of them is about 72.3 lb at zero distance.

Now If instead of one magnet I put a same size coil with iron core over one magnet, how much force I can get with a pulse of 10 amperes of current pushing my neodymium magnet in stroke distance of 50 mm? Probably my coil should have over 1000 turns but the specification of coil is unknown to me.

What I need is the workable coil specs and the maximum repellant force I can get?

Thanks a lot

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