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Which consequence results when a SQUID's superconducting loop is cooled and exposed to external magnetic fields?

A)Flux quantization within the loop
B)Increased ohmic resistance occurs
C)Paramagnetic activity is greatly increased
D)Material undergoes dielectric saturation

💡 Explanation

Flux quantization occurs because trapped magnetic flux in the SQUID’s superconducting loop maintains integer multiples of the flux quantum, therefore magnetic flux is fixed rather than being continuously variable like a normal conducting loop in said fields.

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