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Which mechanism causes zero resistance when a niobium-titanium alloy cable carries high current in a cryogenic transformer?

A)Cooper pair formation overcoming electron scattering
B)Magnetic domain alignment reducing hysteresis
C)Thermal expansion maintaining cable conductivity
D)Increased electron mobility lowering impedance

💡 Explanation

Cooper pair formation causes superconductivity by pairing electrons, thereby enabling electrons to move without resistance because they are able to tunnel past lattice imperfections, rather than experiencing electron scattering effects which create resistance.

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