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(C) The Curie temperature $(T_C)$ is a characteristic property of ferromagnetic materials.At temperatures below the Curie temperature,the magnetic mom

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Ferromagnetic material becomes paramagnetic material

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(C) The Curie temperature $(T_C)$ is a characteristic property of ferromagnetic materials.At temperatures below the Curie temperature,the magnetic moments in a ferromagnetic material are aligned in domains,resulting in strong spontaneous magnetization.As the temperature increases and exceeds $T_C$,the thermal agitation becomes strong enough to disrupt the long-range ordering of the magnetic moments.Consequently,the material loses its ferromagnetic properties and transitions into a paramagnetic state,where the susceptibility follows the Curie-Weiss law.

Curie temperature is the temperature above which:

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