Which one of the following statements concerning superconductors is false?
A)Below its critical temperature,the resistivity of a superconductor is zero -m.
B)Critical temperatures for some superconductors exceed 100 K.
C)All materials are superconducting at temperatures near absolute zero kelvin.
D)A constant current can be maintained in a superconducting ring for several years without an emf.
E)Superconductors are perfect conductors.

Question

Which one of the following statements concerning superconductors is false?
A)Below its critical temperature,the resistivity of a superconductor is zero -m. 
B)Critical temperatures for some superconductors exceed 100 K. 
C)All materials are superconducting at temperatures near absolute zero kelvin. 
D)A constant current can be maintained in a superconducting ring for several years without an emf. 
E)Superconductors are perfect conductors.

Quizplus · Accepted Answer

The Answer is C

Which One of the Following Statements Concerning Superconductors Is False