Ferromagnetism Flashcards
What is ferromagnetism?
A unique magnetic behavior shown by select materials where the materials attain permanent magnetism after entering an external magnetic field. [Once a ferromagnet is attracted to another magnet, the ferromagnet gains the ability to be a permanent magnet]
What is the magnetism of a ferromagnetic material doing before becoming magnetised? And how does it become magnetised?
Small regions [called domains] each have their own separate magnetic pulls pointing in various directions, canceling one another out. After entering an external magnetic field, the pull of these regions align, giving the material a unified direction of pull.
What are Atomic Dipoles?
The name of a domain’s magnetic pull in ferromagnetic materials.
What is the strongest type of magnetism?
Ferromagnetism
What happens to a ferromagnetic substance when liquefied?
It looses it’s ferromagnetic properties [due to high temperature]
How do you remove a ferromagnet’s magnetic field?
To bring the ferromagnet back to zero magnetization, a magnetic field will need to be applied in the opposite direction of the original one that gave it magnetism.
How to you get a paramagnetic material?
When a ferromagnetic material gets to a high enough temperature. [this lower the magnetic pull of the material]