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

Explanation

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