engineering recuitment UPMRC JE 2024 Mock Test Engineering Materials Science Structure and Properties of Engineering Materials Classification of Materials
The best definition of a superconductor is
1
It is a material showing perfect conductivity and Meissner effect below a critical temperature
2
It is conductor having zero resistance
3
It is a perfect conductor with highest diamagnetic susceptibility
4
It is a perfect conductor but becomes resistive when the current density through it exceeds a critical value