Para and Di magnetic Behaviour of Matter

1. Topic- Para-Di-Magnetic Behavior Of
Matter
Submitted By:-
Nikhil Joshi
Purva Kushwaha
Pranshu Choubey
Rubal Shukla
Prateek Dubey
Pragati Patidar
Submitted To:-
Akshay Kutumbale

2. CONTENT
• Diamagnetism
• Properties Of Diamagnetism
• Para-magnetism
• Properties Of Para-magnetism
• Difference between Para-magnetism and
Diamagnetism.

4. Diamagnetism

5. Diamagnetism
• Diamagnetic materials create an induced
magnetic field in a direction opposite to an
externally applied magnetic field.
• They are repelled by the applied magnetic
field.
• The permanent dipoles are absent in
diamagnetic materials.

6. General Properties of Diamagnetic
Materials
• Diamagnetic Materials experiences a repelling force when
brought near the pole of a strong magnet.
• In a non-uniform magnetic field, they are repelled away from
stronger parts of the field.
• The magnetic susceptibility χ of these materials is always
negative.
• The relative permeability µr is always less than one.
• In the absence of external magnetic field ,the net magnetic
dipole moment over each atom or molecule of a diamagnetic
material is zero . This is due to pairing of electrons.
• Examples:- Glass,Bismuth, Copper, Lead, Zinc etc.

7. Paramagnetism

8. Paramagnetisation
• Paramagnetic materials exhibit magnetism
when the external magnetic field is applied.
Paramagnetic materials loose magnetization
in the absence of an externally applied
magnetic field. These materials are weakly
attracted towards magnetic field.
• The degree of magnetization is proportional to
the strength of the applied field.
• The magnetization is parallel to the field.

9. General Properties of Paramagnetic
materials
• Paramagnetic materials experiences a feeble
attractive force when brought near the pole of a
magnet
• These materials possess some permanent dipole
moment which arise due to some unpaired
electrons.
• The magnetic susceptibility χ is small and +ve.
• Examples:-Platinum,Aluminium,Copper sulphate etc.

10. Difference between Diamagnetic
and Paramagnetic
• Paramagnetic materials are attracted by external magnetic fields
whereas diamagnetic materials are repelled.
• Paramagnetic materials have at least one unpaired electron in the
system, but diamagnetic materials have all their electrons paired.
• The magnetic field created by paramagnetic materials are in the
direction of the external magnetic field whereas the magnetic field
created by diamagnetic materials are opposing in direction to the
external magnetic field.
• Paramagnetism is a stronger magnetic behaviour exhibited only
by selective materials, whereas diamagnetism is a weak magnetic
behaviour generally shown by all materials and easily suppressed in
the presence of stronger magnetic properties.

11. Thank You