When a material becomes a superconductor, its resistivity becomes?
Right Answer is:
Superconductivity is a phenomenon in which certain metals, alloys, and ceramics conduct electricity without resistance when it is cooled below a certain temperature called the critical temperature.
A superconductor is a material that loses all its resistance (offers zero resistance) to the flow of electric current when it is cooled below a certain temperature called the critical temperature or transition temperature TC. Examples: Mercury (Hg), Zinc (Zn), Vanadium (V), Tin (Sn), and Niobium (Nb).