What is demagnetism?

Answer 1

Demagnetization is the removal of a permanent magnetic field from an object. Such as the "degaussing" of a CRT to remove color shifting, or the erasing of a magnetic medium (tape, floppy...).

Answer 2

Demagnetism is the process of removing or reducing the magnetic field from a material. This can be achieved by exposing the material to high temperatures, applying an alternating current, or using a demagnetizing coil. Demagnetization is important in various industries to prevent interference with electronic devices or to reset magnetic materials for re-use.

Answer 3

demagnetism is when you remove the magnetism from certain magnetic objects causing magnets not to attract to metal anymore or as strong as it once did

Answer 4

Thing made of iron, or iron-like metals can become magnetic. If you don't want them to magnetic you can do things to them to make them give up their magnetism, and that's demagnetizing.