2006-07-19 02:42:27 · 3 answers · asked by damanjot s 1 in Science & Mathematics ➔ Chemistry
Do you mean "magnetized"? Then the previous answers are good and you can also try degaussing, which overpowers the magnetism with a strong AC magnetic field. You turn on the degausser and hold it as closely as possible to the magnetized object, then slowly remove the degausser. For this to work, the field of the degausser must be considerably stronger than that of the magnetized material and the material must not have high magnetic retentivity.
If you actually mean "magnetic materials", these are not necessarily magnetized, since the definition includes materials such as soft iron, which is magnetically permeable and can be used as the core of an electromagnet but has no inherent magnetic field. As far as I know, you can't make a magnetic material into a nonmagnetic one without changing its composition.
2006-07-19 03:49:24 · answer #1 · answered by kirchwey 7 · 0⤊ 0⤋
By heating,by hammering. By destroying the orientation of the molecules the magnetism can be changed into nonmagnetism.
2006-07-19 03:32:27 · answer #2 · answered by papa 2 · 0⤊ 0⤋
There are many ways to do so.
Heating the material
Hammering the material
dropping from height etc.
2006-07-19 02:49:29 · answer #3 · answered by karthikeyan 3 · 0⤊ 0⤋