Question

Magnets can get demagnetized by heating or hammering. Justify the statement stressing on the orientation of electrons in the magnet.

Answer 1

Answer:

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Answer 2

Justification of magnetic behaviour change according to electrons is given below-

•Magnetic nature of an object occurs due to alignment or orientation of electrons.

•Magnetic behaviour of magnetic materials occurs, because electrons are properly aligned in them, while non magnetic materials have random distribution of electrons.

•On heating and hammering, energy is imparted to magnetic dipole of magnetic materials.

•This causes disorientation in their position.

•Thus, they get demagnetized.

•Magnetic materials get demagnetized permanently, when they are heated beyond Curie temperature.

•Curie temperature is defined as "temperature at which certain magnetic materials undergo a sharp change in their magnetic properties."