Assertion: magnetic field | /r/CapableOf | cancel applied field
Facets:
value: exactly
type: DEGREE
value: inside the superconductor
type: LOCATION
value: externally
type: DEGREE
Source sentences:
text: Fritz London and Heinz London developed the theory that the exclusion of magnetic flux is brought about by electrical screening currents that flow at the surface of the superconducting material and which generate a magnetic field that exactly cancels the externally applied field inside the superconductor.