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

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

Advertisements
Advertisements

प्रश्न

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

टिप्पणी लिखिए
Advertisements

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.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?

संबंधित प्रश्न

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?


The magnetic susceptibility of platinum is 0.0001. It's relative permeability is: 


Choose the correct option:

A rectangular magnet suspended freely has a period of oscillation equal to T. Now it is broken into two equal halves (each having half of the original length) and one piece is made to oscillate freely. Its period of oscillation is T′, the ratio of T′/T is ______.


A paramagnetic gas has 2.0 × 1026 atoms/m with atomic magnetic dipole moment of 1.5 × 10−23 A m2 each. The gas is at 27°C.

  1. Find the maximum magnetization intensity of this sample.
  2. If the gas in this problem is kept in a uniform magnetic field of 3 T, is it possible to achieve saturation magnetization? Why?

A domain in a ferromagnetic substance is in the form of a cube of side 1 µm. If it contains 8 × 1010 atoms and each atomic dipole has a dipole moment of 9 × 10-24 Am2 then the magnetisation of the domain is ______.


Relative permittivity and permeability of a material are  `epsilon_"r"` and `µ_"r"` respectively. Which of the following values of these quantities are allowed for a diamagnetic material?


The magnetic property of magnetic substance is associated with ____________.


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


Which graph shows the variation of magnetic susceptibility (`chi`) with magnetizing field (H) for a paramagnetic substance?


Why does a paramagnetic sample display greater magnetisation (for the same magnetising field) when cooled?


Would the maximum possible magnetisation of a paramagnetic sample be of the same order of magnitude as the magnetisation of a ferromagnet?


A certain region of space is to be shielded from magnetic fields. Suggest a method.


A Rowland ring of mean radius 15 cm has 3500 turns of wire wound on a ferromagnetic core of relative permeability 800. What is the magnetic field B in the core for a magnetising current of 1.2 A?


A diamagnetic material in a magnetic field moves ______.

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


If a diamagnetic substance is brought near north or south pole of a bar magnet, it is ______.

Of dia, para and ferromagnetism, the universal property of all substances is ______.

Which of the following property shows the property of ferromagnetic substances?


Explain the meaning of the following statement:

Curie temperature for soft iron is 770°C.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×