- #1
indigojoker
- 246
- 0
once a ferromagnetic material is magnetized, does it ever go back to it's original "randome magnetic moment" state?
A ferromagnetic material is a type of material that exhibits strong magnetic properties, meaning it can be easily magnetized and retains its magnetization after being exposed to an external magnetic field.
A ferromagnetic material becomes magnetized when its domains, which are small regions within the material where the atomic magnetic moments are aligned, become aligned in the same direction due to an external magnetic field. This creates an overall magnetic field for the material.
Some examples of ferromagnetic materials include iron, nickel, cobalt, and their alloys. Certain types of steel and permanent magnets are also considered ferromagnetic materials.
Ferromagnetic materials have several key properties, including high magnetic susceptibility, high permeability, and the ability to retain their magnetization after being exposed to an external magnetic field. They also exhibit hysteresis, meaning their magnetization lags behind the applied magnetic field.
Ferromagnetic materials have a wide range of applications in everyday life, such as in the production of electric motors, generators, transformers, and magnetic storage devices like hard drives. They are also used in medical imaging equipment, such as MRI machines, and in various industrial processes.