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← ScienceWhich mechanism causes induced current oscillations in superconducting quantum interference devices?
A)Josephson effect modulation of tunneling✓
B)Meissner effect expulsion of flux
C)Quantum entanglement between Cooper pairs
D)Flux pinning within pinning sites
💡 Explanation
Modulation of supercurrent flow occurs due to the Josephson effect; creating oscillating current. This occurs because Cooper pairs tunnel through the barrier, therefore causing current oscillation, rather than expulsion, pairing, or pinning scenarios under varied conditions.
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