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← ScienceWhich outcome occurs when electrons approach a thin insulating layer?
A)Quantum tunneling allows penetration.✓
B)Capacitive discharge fully drains potential.
C)Increased resistive heating occurs rapidly.
D)Electron reflection eliminates transmission completely.
💡 Explanation
Quantum tunneling allows some electrons to pass through the insulating layer, even if their energy is lower than the potential barrier, because wavefunctions have non-zero amplitudes; therefore, penetration occurs rather than complete reflection or heating.
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