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MagBen, Thanks for your comment. I had no idea about magnet design for different purposes. I suppose it's like any engineering field - until one digs into it, one has no idea about the complexity of the field. For my particular application, I'm convinced I won't be able to use two magnets...

All, You guys are great. Thanks for digging into this so quickly. In my original post (OP you guys call it?), my force N was indeed an unknown variable; we'll call it X from now on :-). I had no idea there was software to calculate these forces. Engineering is a big field, I guess. ;-)...

Hello all. I have a basic question about magnetism. I know very little about magnetic fields. Let's say I have two identical (shape, size, field-strength) magnets. They are positioned to be attracted to each other (with some force N). If I replace one of the magnets with an...