The larger the object the more the distance between the two magnets. I'm looking for a substance or a mass, aside from distance.
2007-11-09 11:22:49 · 5 answers · asked by Aaron M 2 in Science & Mathematics ➔ Physics
Completely enclosing a volume with a highly ferromagnetic material like iron or mu metal will largely shield out an external magnetic field. It works by concentrating the magnetic flux within the wall, and redirecting it around the interior.
2007-11-09 12:34:04 · answer #1 · answered by Dr. R 7 · 0⤊ 0⤋
Scott is absolutely correct. I'm not sure however, whether you're looking for that degree of theoretical perfection?
If you simply interpose a highly magnetic material between your magnet and the other one, and space it so that it (the material, - iron, for instance) forms effectively a 'yoke', then all the field from your first magnet will be drawn into the iron sheet., and the second magnet will have only a secondary-order attraction force to it. The two magnets themselves are not directly attracting each other.
So this achieves pretty well the effect you are looking for, in practice.
But I basically agree with Scott. It depends on whether you are seeking a practical solution to a problem, or a strict theoretical technical answer.
2007-11-09 11:49:20 · answer #2 · answered by Luke Skywalker 6 · 1⤊ 0⤋
Many times I have been very drawn to people I don't even know. But, then I am very empathic to begin with. Some people on the other hand I have been very repulsed by upon meeting. The content of a persons spirit screams at me. It's always wild when I meet a person for the first time. There is either a magnetic draw or a magnetic pushing away. Never in between.
2016-04-03 04:36:11 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Simple iron plates will do. Of course, they will attract the magnet (or the other way round). That's the opposite of the superconductor which will repel the magnet... but MUUUUUUCH cheaper. And not quite so cold on hands, either.
And no matter what you do, you can not shield a magnetic field without having some forces acting on the source (that simply follows from the change of energy in the magnetic field when it gets distorted).
2007-11-09 11:43:55 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Yes. A diamagnetic material basically repels a magnetic field. The most perfect diamagnetic material is a superconductor which is why you can suspend a superconducting puck above a magnetic field.
Bismuth is also highly diamagnetic.
2007-11-09 11:27:56 · answer #5 · answered by Scott W 3 · 0⤊ 0⤋