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← ScienceWhich mechanism creates a decrease in diode conductivity?
A)Decreased band bending at depletion region✓
B)Increased impurity concentration in crystal
C)Lowered external thermal operating temperature
D)Augmented forward bias electric current
💡 Explanation
Decreased band bending reduces the electric field, therefore the drift current decreases because fewer charge carriers are swept across the depletion region, rather than enhanced by stronger fields or increased carrier density at greater temperature.
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