Question

What are Diamagnetism and Paramagnetism and write differences between them?



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Answer 1

Answer:

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.

Answer 2

Diamagnetism

Diamagnetic substances have a tendency to move from stronger part to the weaker part of the external magnetic field. We can also say that the diamagnetic substances get repelled by a magnet.We see that the field lined get repelled by the material and the field inside the material is reduced. If we place this substance in a non-uniform magnetic field, it tends to move from the point of a high electric field to that of a low electric field.

Paramagnetism

Paramagnetic substances are those substances that get weakly magnetized in the presence of an external magnetic field. In the presence of an external magnetic field, these substances tend to move from a region of a weak to a strong magnetic field. In other terms, we can say that these substances tend to get weakly attracted to a permanent magnet. In a paramagnetic material, the individual atoms possess a dipole moment, which when placed in a magnetic field, interact with one another, and get spontaneously aligned in a common direction, which results in its magnetization.