In: Physics
(a) Explain the Meissner effect of flux expulsion in a long superconducting wire arranged with its axis parallel to a magnetic field using the differential form of Faraday law of electromagnetie induetion. (b) Illustrate that the supereonductor not only excludes external magnetic field, it expels fields that has been established inside the superconductor using the graphical way such as B vs. H plot.