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← ScienceWhich outcome results when a silicon diode's doping profile is modified such that the depletion region becomes extremely narrow?
A)Significant tunneling current appears✓
B)Reverse breakdown voltage increases
C)Diode capacitance dramatically decreases
D)Forward voltage drop also increases
💡 Explanation
Significant tunneling current appears at low voltages because Quantum Tunneling allows considerable electron flow through the narrowed potential barrier within the device's depletion region. Therefore current passes readily at low voltages rather than exhibiting standard behavior because depletion allows less to pass.
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