Question
Physics Question on Electric Current
Identify the INCORRECT statement regarding a superconducting wire
A
transport current flows through its surface
B
transport current flows through the entire area of cross-section of the wire
C
it exhibits zero electrical resistivity and expels applied magnetic field
D
it is used to produce large magnetic field
Answer
transport current flows through the entire area of cross-section of the wire
Explanation
Solution
Supercurrent always flows on the surface of the superconductor.