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When niobium-titanium wire heats past its critical temperature within a MRI machine superconducting magnet, which consequence results?

A)Quench occurs, magnetic field collapses
B)Magnetic field strength intensifies rapidly
C)Cryostat pressure decreases to vacuum
D)Wire converts to perfect insulator

💡 Explanation

When critical temperature increases, the material loses superconductivity; Magnetic flux expulsion ceases via the Meissner effect, therefore a quench occurs and the magnetic field collapses, rather than intensification, because resistance drastically increases.

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