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DIAMAGNETISM PARAMAGNETISM FERROMAGNETISM PDF

Magnetic Dipoles and Magnetic Moments. 5. Magnetization, Permeability, and the Magnetic Field. 6. Diamagnetic, Paramagnetic, Ferromagnetic,. Ferrimagnetic . The chapter describes different types of magnetic materials, such as paramagnetic, diamagnetic, and ferromagnetic. From the classical point of view, it follows. However, for materials that show some other form of magnetism (such as ferromagnetism or paramagnetism), the diamagnetic contribution.

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When a paramagnetic substance is placed in an external magnetic field, each atomic magnets tend to align in the direction of the field.

What is the difference between paramagnetism and ferromagnetism?

Thus a paramagnetic substance acquires a net magnetic moment magnetisation. Please upload this useful knowledge in video form on Youtube you will definately get atleast 10K likes. Your ferdomagnetism address will not be published. Save my name, email, and website in this browser for the next time I comment. Those substances which are weekly magnetised when placed in an external magnetic field, in a direction opposite to the applied field are called diamagnetic substances.

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The magnetism exhibited by these substances is called diamagnetism. Copper, gold, antimony, bismuth, silver, lead, silicon, mercury, water, air, hydrogen, nitrogen etc.

The orbital motion of electrons gives rise to an orbital magnetic moment. In addition, the electrons spin about its own axis constituting a spin magnetic moment. The resultant magnetic moment of an atom is the vector sum of orbital and spin magnetic moment. In an atom, electrons can have clockwise or anticlockwise spin.

Similarly, the electrons can revolve around the nucleus in clockwise or anticlockwise direction.

What is the difference between paramagnetism and ferromagnetism?

In diamagnetic substances, the orbital magnetic moments and magnetic moments of atoms are oriented in such a way that the vector sum of the magnetic moment of an atom is zero. When a diamagnetic substance is placed in an external magnetic field, the induced e.

As a result, the speed of electrons revolving in one direction increases and those revolving in opposite direction decreases. Thus the substance as a whole acquires a net magnetic moment in a direction opposite to the applied field. Characteristics of Diamagnetic Substances: The magnetic moment of every atom is zero.

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They are weakly repelled by external magnetic field. When placed in a non-uniform magnetic field, they tend to move from the stronger to the weaker part of the field. In an external magnetic field, they get weakly magnetized in the direction opposite to that of the field When a rod of diamagnetic substance is suspended in a uniform magnetic field, it comes to rest with its length perpendicular to the directions Of the field.

Classes of Magnetic Materials

Curie TemperatureDiamgnetismFerromagnetismParamagnetism. Wow, really it is very easy to understand. Mukesh October 14, 1: Arjun October 16, 9: Thank you finally understood!!

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