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Which mechanism enables lossless current within niobium-titanium superconducting magnets?

A)Cooper pair formation by phonon exchange
B)Increased electron-phonon scattering
C)Quantum tunneling of unbound electrons
D)Thermally activated quasiparticle excitations

💡 Explanation

Cooper pair formation allows lossless conduction via zero resistance because electrons bind via phonon exchange, therefore current faces no impedance. Increased electron-phonon scattering introduces resistance, rather than enabling superconductivity; alternatives describe dissipative effects.

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