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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Why is diamagnetism, in contrast, almost independent of temperature?

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प्रश्न

Why is diamagnetism, in contrast, almost independent of temperature?

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उत्तर

Each molecule of the diamagnetic material is not a magnetic dipole in itself. Hence, the random thermal motion of the molecules of the diamagnetic material (which is related to the temperature) does not affect the diamagnetism of the material.

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पाठ 5: Magnetism and Matter - Exercise [पृष्ठ २०२]

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एनसीईआरटी Physics Part I and II [English] Class 12
पाठ 5 Magnetism and Matter
Exercise | Q 5.16 (b) | पृष्ठ २०२

संबंधित प्रश्‍न

Distinguish between ‘paramagnetic’ and ‘ferromagnetic’ substances.


Give any ‘two’ points of differences between diamagnetic and ferromagnetic substances.


The magnetic susceptibility of annealed iron at saturation is 4224. Find the permeability of
annealed iron at saturation. (μ0 = 4Π × 10−7 SI unit)


Draw magnetic field line when a (i) diamagnetic, (ii) paramagnetic substance is placed in an external magnetic field. Which magnetic property distinguishes this behaviour of the field line due to the substances?


For a paramagnetic substance, the magnetic susceptibility is ______.


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A small quantity of paramagnetic liquid is taken in a watch - glass and kept on two dissimilar magnetic poles. The liquid ____________.


Assertion: The ferromagnetic substance do not obey Curie’s law.
Reason: At Curie point a ferromagnetic substance start behaving as a paramagnetic substance.


A diamagnetic material in a magnetic field moves ______.

Metals getting magnetised by orientation of atomic magnetic moments in external magnetic field are called ______.


A material is placed in a magnetic field and it is thrown out of it. Then the material is ______.

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According to the Atomic theory, on heating a magnet, the thermal energy of the elementary magnet ______


A uniform magnetic field gets modified as shown in figure when two specimens A and B are placed in it.

(a) (b)
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  2. How is the magnetic susceptibility of specimen A different from that of specimen B?

Explain the origin of paramagnetism on the basis of atomic structure.


Magnetic susceptibility of a diamagnetic substance ______.


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