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Which outcome arises when resonant tunneling diode barrier thickness increases beyond critical limit?

A)Reduced current due to decreased tunneling
B)Increased voltage drop at resonant peak
C)Oscillation frequency shifts to higher band
D)Thermal runaway due to increased resistance

💡 Explanation

When resonant tunneling diode barrier thickness increases, quantum tunneling probability decreases significantly because it's exponentially dependent on the barrier width, leading to reduced electron transmission. Therefore, current decreases rather than increasing voltage, increasing oscillation or causing thermal issues which require different conductive properties.

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