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← ScienceWhich mechanism reduces electrical resistance when a superconducting cable approaches critical temperature?
A)Cooper pair quantum condensation✓
B)Increased electron-phonon scattering
C)Augmented Joule heating dissipation
D)Suppressed magnetic domain alignment
💡 Explanation
Superconducting cables exhibit zero resistance because Cooper pair quantum condensation moves electrons without scattering. This forms a macroscopic quantum ground state, therefore current flows without loss, rather than by increased scattering as in normal conductors.
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