Question

the resistance of some substance become zero at very low temperature then the substance are called ​

Answer 1

Answer:

Superconductivity is the phenomenon of making the substance free of resistance to electric current. Some substances at a very low temperature (below critical temperature) acts as a superconductor.

Answer 2

the resistance of some substance become zero at very low temperature then the substance are called Superconductors.

$\implies$ Resistance is the opposition of the flow of electricity. So, when resistance is zero, it means that the substance is able to conduct electricity. This substance which conducts electricity without any hurdle is known as Superconductor.

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