Quote:
Originally Posted by ayeckley
Not to bust your chops, but that's true for electric fields -- not so much for magnetic fields. Effective magnetic shielding requires the use of a material with a high magnetic permeability such as Mu-metal (Carpenter Specialty Alloys). Rolled foil copper such as that found on PCBs has little effect.
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Increasing the distance to the source of magnetic field interference is also very effective. The strength of the coupling is inversely proportional to the cube of the distance.