superconductor. H
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Transcribed Image Text:A. Explain the formation of Cooper pair in a superconductor. How does the
electron-electron interaction via lattice deformation result in
superconductivity?
B. A superconducting lead sample has a critical temperature (Tc) of 7.26 K at zero
magnetic field and a critical field of 8 x 105 Tesla at 0 K. Calculate the critical
magnetic field at 5 K.
C. In London's phenomenological theory of superconductors, what is the London
penetration depth (2.)?
D. Mercury has a critical temperature (Tc) of 4.12 K and its London penetration
depth (2) at 0 Kis 519 x 10-10 m. Estimate the penetration depth at 3.50 K.
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