Calculate the critical current through a long thin superconducting wire of radius 0.5 mm. The critical magnetic

A superconductor tin has a critical temperature of 3.7 K in zero magnetic field and a critical field of 0.0306 T

The critical temperature for a metal with isotopic mass 199.5 is 4.185 K. Calculate the isotopic mass if the cri

For mercury of mass number 202, Tc is 4.2 K. Find the transition temperature for its isotope of mass number 200

The penetration depth is the __________ where the current drops to 1/e times of its value at the surface.