CBSE Class 12-science Answered
Mam..,
I'd like to know y does a paramagnetic sample display greater magnetisation (for the same mag.field ) when cooled and the reason for diamagnetism to be almost independent of temperature.
Asked by MAANASI.M | 13 Sep, 2014, 10:58: PM
Expert Answer
When a paramagnetic sample is cooled, the tendency of the thermal agitation to disrupt the alignment of magnetic dipoles decreases.And due to this a paramagnetic material display greater magnetisation at lower temperature.
On the other hand the atoms of a diamagnetic sample do not have intrinsic magnetic dipole moment. Therefore random thermal motion of molecules does not affect the magnetism of the sample.Due to this fact diamagnetism is independent of temperature.
Answered by Jyothi Nair | 15 Sep, 2014, 09:37: AM
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