Question

There are three important lengths which enter the theory of superconductivity Except a, London Penetration length b) Intrinsic cotrerence length c) Normes electron mean freelength di mean Path length​

Answer 1

Answer:

I think the answer is b)Intrinsic cotrerence length

Answer 2

Option (D) is correct

Explanation:

• Except mean path length​, there are three important lengths which putforth the idea of superconductivity like London Penetration length, Intrinsic coherence length and Normal electron mean free length.
• A theory of superconductivity introduced by the John Bardeen, Leon Cooper, and Robert Schrieffer which explains the concept within which a current of electron pairs flows without resistivity in certain materials about low temperatures.
• It is this weak and indirect attraction that binding the electrons together, into a Cooper pair.