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All the magnetic materials lose their magnetic properties when they are

All the magnetic materials lose their magnetic properties when they are Correct Answer Heated

The correct answer is option 3 i.e., Heated.

  • All the magnetic materials lose their magnetic properties when they are Heated.
  • For every material, there is a temperature specific to it known as its Curie temperature above which the magnetic materials lose their magnetic properties.
  • The Curie Temperature is a temperature at which certain magnetic
    materials undergo a sharp change in their magnetic properties.
  • The Curie Temperature is named after the French physicist Pierre Curie who discovered some laws of magnetism in 1895.
Magnetic Materials & their specifications
Materials Specifications
Iron Used for electromagnets as well as in a permanent magnet
Iron oxides Haematite, magnetite and ferric oxide
Nickel Magnetic to moderate temperatures
Cobalt Retains magnetism at high temperatures
Alloys Certain alloys of iron, nickel or cobalt
Rare earth Samarium and Neodymium magnets

 

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