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← ScienceWhich electrical effect arises from overlapping wave functions between two conductors separated by a thin insulator?
A)Zener breakdown due to impact ionization
B)Dielectric breakdown due to strong field
C)Quantum tunneling causing electron flow✓
D)Thermal runaway driving avalanche effect
💡 Explanation
When the wave functions overlap, quantum tunneling allows electrons to probabilistically pass through the insulating barrier because electrons have a non-zero probability density within the barrier based on the Schrodinger equation thereby forming current. Therefore, quantum tunneling electron flow results, rather than breakdown effects, which need strong fields or heat effect.
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