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← ScienceWhich mechanism ensures magnetic flux quantization within superconductors?
A)Meissner effect flux pinning✓
B)Critical current density increase
C)Hall resistance renormalization
D)Cooper paring coherence expansion
💡 Explanation
The expulsion of magnetic fields by the Meissner effect traps flux into quanta; flux pinning impedes their motion. Therefore, magnetic flux quantization ensures superconductivity maintenance rather than complete flux expulsion because materials imperfections trap flux.
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