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← ScienceWhich outcome results when a superconducting quantum interference device exceeds its critical current?
A)Abrupt transition to normal conductance✓
B)Increased signal-to-noise ratio
C)Enhanced Cooper pair formation
D)Improved magnetic flux quantization
💡 Explanation
When a SQUID’s current surpasses the critical value, *quasiparticle excitation* occurs, destroying superconductivity. Disrupting the Cooper pairs means normal conductance returns because the material loses its zero-resistance state, rather than maintaining superconductivity.
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