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D

Deepika • 5.41K Points
Tutor III Physics

(A) Soft iron is a hard ferromagnetic material
(B) Alnico is a soft ferromagnetic material
(C) At high enough temperature, a ferromagnet becomes a paramagnet
(D) All of the above
Correct Answer - Option(C)
Explanation by: Deepika
The ferromagnetic property depends on temperature. At high enough temperature, a ferromagnet becomes a paramagnet. Soft iron is a soft ferromagnetic material and Alnico is a hard ferromagnetic material.

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