Magnetic Field: The magnetic field is an imaginary line of force around a magnet which enables other ferromagnetic materials to get repelled or attracted towards it. Copy the link given below and paste it in new browser window to get more information on Magnetic Properties of Materials www.askiitians.com/iit-jee-magnetism/magnetic-properties-of-materials/

1. Magnetic property of Materials

2. Magnetic properties of material can be classified as:
• Magnetic field: The imaginary lines of force around a magnet
• Magnetic field strength: H = nL/l (A/m)

3. Magnetic flux density: Magnetic lines passing through per
square metre of a substance
B=μ X H (Tesla or weber /m2)
• Magnetic Moments: The rotational force experienced by a
magnet when placed in a magnetic field perpendicular to its
magnetic axis is defined as the magnetic moment of a
magnet.

4. Classification of magnetic material
• Diamagnetic: Net magnetic moment is zero due to the
alignment of magnetic moment in the opposite direction
H
• Paramagnetic: Very little magnetic susceptibility

5. • Ferro-Magnets: Retains magnetism even when external field
is removed because of the parallel alignment of the electron
moment.
• Ferri-Magnets: Some magnetic domains in ferri-magnetic
material points in the same direction while some point in the
opposite direction.

6. • Anti-Ferromagnetism: In anti-ferromagnetic material, the
magnetic moments of atoms or molecules usually related to
the spin of the electrons, align in a regular pattern with
neighbouring spins in opposite directions. MnO is an example
of anti-ferromagnetism

7. Classification of periodic elements based on
magnetic properties

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