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Which outcome occurs when a reverse bias is applied to a resonant tunneling diode at a specific voltage?

A)Increased current due to resonant tunneling
B)Decreased current due to quantum interference
C)Unchanged current due to fixed barrier
D)Oscillating current from capacitance effects

💡 Explanation

When a reverse bias is critically applied, destructive quantum interference occurs as the transmission probability through the quantum well reduces due to the misalignment of energy levels, decreasing the current. Therefore, current decreases, rather than increases as constructive tunneling would require aligned energy levels.

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