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← ScienceWhich outcome results when electron concentration becomes depleted within a semiconductor?
A)Increased electron-hole recombination rate✓
B)Increased electron effective mass
C)Decreased lattice vibration scattering
D)Decreased probability of Zener breakdown
💡 Explanation
An increased electron-hole recombination rate occurs, as fewer electrons and more holes are available to recombine, because the electron depletion triggers increased radiative/non-radiative transitions. Therefore, recombination increases rather than alternatives like Zener breakdown, under reverse bias conditions.
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