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← ScienceWhich outcome occurs when approaching the repulsive potential barrier in reverse-biased tunnel diode doped to degeneracy?
A)Electron tunneling current exponentially decreases
B)Current increases with tunneling probability✓
C)Band bending remains unaffected by bias
D)Drift current rises at breakdown voltage
💡 Explanation
The quantum tunneling mechanism causes an increase in electron transmission probability. This happens because reduction in barrier width occurs by heavy doping, therefore forward bias can significantly improve electron transport rather than causing a blockage.
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