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A solid superconductor is placed in an external magnetic field and then cooled below its critical temperature. The superconductor will behave like a substance whose magnetic susceptibility χ will be

A solid superconductor is placed in an external magnetic field and then cooled below its critical temperature. The superconductor will behave like a substance whose magnetic susceptibility χ will be Correct Answer -1

Correct option - 1

Concept:

  • Superconductors are the materials which, when cooled below a certain temperature their electrical resistivity is zero and show perfect diamagnetism.
  • Perfect diamagnetism means induced magnetic field cancels exactly the applied magnetic field.
  • This exclusion of magnetic flux from the interior of a superconductor is called the Meissner effect.
  • The temperature below which the superconductor shows perfect diamagnetism is called transition temperature denoted by TC.

  • Superconductivity can be destroyed by the
    • Application of temperature above the transition temperature TC.
    • Application of magnetic field above the critical magnetic field HC.

 

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