Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Removing magnetism from a magnet with electricity?

  1. Feb 21, 2006 #1
    Hey everyone, wondering if anyone knows if it's possible to remove the magnetism from a magnet through use of electicity. Specifically using 12volts, 2.5 amps DC.

    I'm looking for some kind of switch, or converter etc, that would remove the magnetism, but obviously I don't know exactly what i'm looking for.

    Any help would be appreciated, thanks =)
  2. jcsd
  3. Feb 21, 2006 #2


    User Avatar

    Staff: Mentor

    The key term you should look for is degaussing coil. That is the most common way to demagnetize stuff. It uses a decaying AC magnetic field to work the B-H curve of the magnetized material back down to the center, so there is no Br left.

    Just google "degaussing coil" and you should get some useful hits.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook