Question

Write the properties of diamagnetic, paramagnetic and ferromagnetic materials.

Answer 1

Properties of diamagnetic, paramagnetic and ferromagnetic materials.

Properties	Diamagnetic Material	Paramagnetic Material	Ferromagnetic Material
Magnetic dipole	None due to paired electrons	Permanent dipole moment due to unpaired spin.	Permanent dipole moments that are large and aligned in the magnetic field direction.
Effect when placed in an external magnetic field.	Repels	Weak attraction	Strong attraction
Behaviour in a non-uniform magnetic field	Tends to move from stronger to weaker magnetic field regions.	Tends to move from  weaker to stronger magnetic field regions.	Tends to move from  weaker to stronger magnetic field regions.
Magnetization intensity	Very small and negative. Directly proportional to the magnetic field.	Very Small and positive. Directly proportional to the magnetic field.	Very large and positive.
Magnetic susceptibility	Small and negative	Small and positive	Large and positive
Relative permeability	Slightly less than unity	Slightly greater than unity	Very large
Dependency on temperature	Independent	The effect is inversely proportional to absolute temperature.	When liquified loses properties at higher temperatures.
Magnetic dipole moment	Small and opposite to H	Small and parallel to H	Large and in the direction of H