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by MereInterest
1742 days ago
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Electric fields are easy to shield against with a Faraday cage, but magnetic fields are a royal pain. You can use mu-metal shielding, but that's rather expensive and only reduces the magnetic field. Technically, if you wanted to entirely shield from magnetic fields, you'd need to surround the wire with a superconductor, but that requires liquid nitrogen/helium cooling that is out of the scope of most residential work. |
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