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Is there any change in susceptibility of paramagnetic substance with temperature

Is there any change in susceptibility of paramagnetic substance with temperature

Grade:12

1 Answers

Manas Shukla
102 Points
7 years ago
According to Curie’s Law susceptibility of paramagnetic materials is inversely proportional to their temperature.
M = \chi H = \frac{C}{T}H
M = magnetisation
\chi = Magnetic Susceptibility
T = absolute temperature
H = magnetic field
C = curie constant for that material
 
Keep in mind that this law is not valid when the magnetic fields are too high or the temperature is too low.
when the temperature is too high thermal forces overcome magnetic forces and hence prevent dipole allignment.
When the temperature is too low thermal forces become weakand hence magnetic forces always overcome thermal forces and hence changing temperature will not affect magnetic susceptibility.

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