Curie temperature is the temperature above which
a ferromagnetic material becomes paramagnetic
a paramagnetic material becomes diamagnetic
a ferromagnetic material becomes diamagnetic
a paramagnetic material becomes ferromagnetic.
As we learnt in
Curie Temperature or Curie Point -
With the rise of temperature susceptibility of ferromagnetic materials decreases.
- wherein
It is denoted by Tc
A ferromagnetic material becomes paramagnetic above Curie temperature.
Option 1)
a ferromagnetic material becomes paramagnetic
Correct
Option 2)
a paramagnetic material becomes diamagnetic
Incorrect
Option 3)
a ferromagnetic material becomes diamagnetic
Incorrect
Option 4)
a paramagnetic material becomes ferromagnetic.
Incorrect
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