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At what temperature, a ferromagnetic material becomes paramagnetic material?

At what temperature, a ferromagnetic material becomes paramagnetic material? Correct Answer Curie temperature

CONCEPT:

  • Curie Temperature: It is the temperature at which a magnetic material undergoes a sharp change in its magnetic properties.
    • Above this temperature, some materials lose their magnetism.
    • Above this temperature, ferromagnetic material becomes paramagnetic.
  • ​The Néel temperature or magnetic ordering temperature, TN, is the temperature above which an antiferromagnetic material becomes paramagnetic—that is, the thermal energy becomes large enough to destroy the microscopic magnetic ordering within the material.

EXPLANATION:

  • When a ferromagnetic material is heated to Curie temperature, it disrupts the arrangements of the molecules and a weak magnetic behavior remains.
  • This weak magnetic behavior is called Paramagnetic.
  • So, above curie temperature, a ferromagnetic material becomes paramagnetic material.
  • Hence the correct answer is option 2.

Related Questions

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