Superconductivity is a phe- nomenon of exactly zero electrical resistance and expulsion of magnetic flelds occurring in certain materials when cooled below a characteristic critical temperature. In a superconductor, the resistance drops abruptly to zero when the material is cooled below its critical temperature. An electric current flowing through a loop l of superconducting wire can persist indefinitely with no power source.
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Superconductivity was discovered by ______ , who was also awarded the Noble Prize for Physics in 1911.
Recently discovered superconductivity materials are
Assertion:- Magnetism and superconductivity are natural enemies. Reason:- Macroscopic magnetic properties depend on electrons that are lined up parallel to one another, while superconductivity requries pairs of electrons with their spins in oppsoite directions.
Recently, the phenomenon of superconductivity has been observed at 95 K . This temperature is nearly equal to
