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← ScienceWhich consequence results when electrons experience quantum tunneling in a Josephson junction?
A)Supercurrent is established across barrier✓
B)Resistance increases dramatically
C)Thermal runaway destroys the crystal
D)Photons are emitted chaotically
💡 Explanation
Supercurrent emerges because Cooper pairs pass through the insulating barrier via quantum tunneling, a mechanism permitted by quantum mechanics; therefore, a current flows rather than resistance spiking, because the electrons act collectively.
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