Question

explain about supper conductors? 7marks question please help me

Answer 1

a substance capable of becoming superconducting at sufficiently low temperatures.

a substance in the superconducting state.

"as they are cooled through a critical temperature, they suddenly become superconductors"

Answer 2

Source :- Wikipedia
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. ... Even near absolute zero, a real sample of a normal conductor shows some resistance.