Question

soft superconducter observe
a. messiner effect
silsbee rule
c. both of the above
d. none of these​

Answer 1

Answer:

Soft superconductors are those which can tolerate impurities without affecting the superconducting properties. Hard superconductors are those which cannot tolerate impurities, i.e. the impurity affects the superconducting properties. These are low critical field.

a)Silsbee's rule (also Silsbee rule or Silsbee criterion)1) - a criterion describing the critical (maximum) value of magnetic field, above which a superconductor looses its superconducting state, and becomes a normal resistive conductor.