Question: The element niobium, which is a metal, is a superconductor (i.e., no electrical resistance) at temperatures below 9 K. However, the superconductivity is destroyed if the magnetic field at the surface of the metal reaches or exceeds 0.10 T.
Part A: What is the maximum current in a straight, 2.4-mm-diameter superconducting niobium wire?
I need help to find the maximum current in a straight, 2.4-mm-diameter superconducting niobium wire.