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← ScienceWhich mechanism causes increased current flow when a superconducting nanowire cools?
A)Cooper pair formation and condensation✓
B)Increased phonon scattering dominance
C)Fermi level shifts exponentially higher
D)Increased material electron density linearly
💡 Explanation
When a superconducting nanowire cools, Cooper pair formation occurs because electrons pair up via phonon interactions. This Bose-Einstein condensation of Cooper pairs allows lossless flow via the Meissner effect; therefore resistance effectively vanishes rather than increasing due to scattering.
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