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Related Question:

How does the shape of the non-magnetic, ferromagnetic metal -- affect the max distance?

For example, let's say that a non-magnetic, ferromagnetic metal object -- was cone shaped or pyramid shaped -- if the base of the cone or pyramid was placed on the magnet, then the other end, due to it being pointy in nature -- would collect the magnetic field at that point, and extend it farther into space than a structure like a beam or bar of the same length...

Conversely, if the pointy end was placed near the magnet, the flat end would dissipate the magnetic field, which should mean that it would travel (from that point onward) a less amount in space...

Also, a related question to this is, what's the best shape of the non-magnetic, ferromagnetic metal -- such that it extends the magnetic field for the max distance from it?

Also, if a specific shape is good at blocking/dissipating the magnetic field -- perhaps that makes it a candidate for such things as Hallbach arrays, etc. (I don't know -- this is pure speculation...)

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