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← ScienceWhich outcome occurs when a reverse-biased tunnel diode's depletion region becomes extremely narrow?
A)Increased current due to quantum tunneling✓
B)Decreased capacitance due to wider gap
C)Increased resistance due to carrier depletion
D)Oscillations cease due to excessive damping
💡 Explanation
When a tunnel diode's depletion region is very narrow, quantum tunneling occurs because electrons can directly tunnel through the barrier, leading to a significant current flow even in reverse bias. Therefore increased current results, rather than decreased capacitance, increased resistance, or oscillation damping, all of which need different mechanisms.
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