Magnetic properties of solids: -
1. Diamagnetic Substances: -
Substances which are weakly repelled by the external magnetic field are called diamagnetic substances.
Ex: TiO2, H2O, NaCl
2. Paramagnetic Substances: -
Substances which are attracted by the external magnetic field are called paramagnetic substances.
Ex: O2, Cu2+, Fe3+
3. Ferromagnetic Substances: -
Substances which show permanent magnetism even in the absence of magnetic field are called ferromagnetic substances.
Ex: Fe, Ni
This curve I a following by the ferromagneticmaterial.this curve is knon as hesterisis curve
4. Anti- Ferromagnetic Substances: -
Substances which are expected to posses’ paramagnetism and ferromagnetism on the basis of magnetic moments of the domains but actually they posses Zero magnetic moment are called anti- ferromagnetic substances.
Ex: MnO
5. Ferromagnetic Substances: -
Substances which are expected to posses large magnetism on the basis of magnetic moments of the domains but actually have small net magnetic moment are called ferromagnetic substances.
Ex: Fe3O4
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