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Which mechanism causes zero resistance in superconducting wires?

A)Cooper pair electron phonon interaction
B)Increased electron-electron collision frequency
C)Quantum tunneling across grain boundaries
D)Suppressed thermal lattice vibration scattering

💡 Explanation

Cooper pairs form because of electron-lattice-electron interactions; this pairing due to the phonon interaction allows electrons to move without scattering. Therefore, resistance disappears; rather than increasing collision frequencies, electrons move coherently.

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