Text Problem 30-30 Niobium metal becomes a superconductor when cooled below Its 9 K. superconductivity is destroyed when the surface magnetic field exceeds In the absence of any 0.100 T. external magnetic field, determine the maximum current a mm-diameter niobium wire can carry 2.00 and remain superconducting.
Text Problem 30-30 Niobium metal becomes a superconductor when cooled below 9 K. Its superconductivity is destroyed when the surface magnetic field exceeds 0.100 T. In the absence of any external magnetic field, determine the maximum current a 2.00 mm-diameter niobium wire can carry and remain superconducting.