Question

What type of substances would make better permanent magnets, ferromagnetic or ferrimagnetic. Justify your answer.

Answer 1

ferromagnetic materials have higher Curie Temperatures than ferrimagnetic materials.

ferromagnet will likely have a stronger magnetic field than ferrimagnetic.

Answer 2

Hey !!

Ferromagnetic substances make better permanent magnets. This is because the metal ions of a ferromagnetic substances are grouped into small regions called 'domains'. Each domain acts as a tiny magnet. These domains are randomly oriented. When a ferromagnetic substance is placed in a magnetic field, all the domains gets oriented in the direction of the magnetic field and a strong magnetic field is produced. Such order of domains persists even when the external magnetic field is removed. Hence, the ferromagnetic substance becomes a permanent magnet. On the other hand, the net or resultant magnetic moment of ferrimagnetic substances is small.

Hope it helps you !!