Sunday, December 27, 2009

Is it possible to shield an object from the effects of magnets? Can magnetic force be directed with shielding?

I know you can shield objects and electronics/electronic signals %26amp; wires from interference, but that's electromagnetic. I'm talking about a regular neodynium rare earth magnet. Can it be done with a substance, like lead, as opposed to a ';powered'; or electrically induced counterforce?Is it possible to shield an object from the effects of magnets? Can magnetic force be directed with shielding?
Sure. You can concentrate magnetic flux in a shield of a very high-permittivity material (a so-called ';mu-metal';) and thereby direct most of it around something inside. Alternatively, you can put your object-to-be-shielded inside a superconducting cavity: superconductors oppose the introduction of magnetic fields very efficiently.Is it possible to shield an object from the effects of magnets? Can magnetic force be directed with shielding?
Yes, there exist many different types of magnetic shields; they work due to their permeability.

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