Question

What is meant by superconductor? What is meissner effect?

Answer 1

Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic flux fields occurring in certain materials, called superconductors, when cooled below a characteristic critical temperature
The German physicists WaltherMeissner and Robert Ochsenfeld discovered this phenomenon in 1933 by measuring the magnetic field distribution outside superconductingtin and lead samples. ... Asuperconductor with little or no magnetic field within it is said to be in the Meissner state.




Hope it helps you!!!

Answer 2

a superconductor is that in which electricity cannot pass and it has resistance 0