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Physics

NEET PhysicsClass 12ParamagnetismMediumStatement based

Question 5 of 10

Samples of a paramagnet, a diamagnet, a superconductor and a ferromagnet are studied in a lab. Which of the following observations about such materials are correct?

  • I. The susceptibility of a paramagnetic material depends on its temperature.
  • II. Diamagnetic materials have a small negative susceptibility.
  • III. A superconductor expels a magnetic field completely and behaves as a perfect diamagnet, with μᵣ = 0.
  • IV. A ferromagnetic material remains ferromagnetic however much it is heated.

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