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← ScienceWhich consequence results when exceeding p-n photodiode reverse bias?
A)Increased electron-hole recombination rate
B)Avalanche carrier multiplication occurs✓
C)Reduced quantum efficiency observed
D)Dark currrent is automatically minimized
💡 Explanation
Avalanche breakdown occurs; large reverse voltage accelerates electrons, causing impact ionization that amplifies current due to the avalanche carrier multiplication mechanism. This leads to uncontrolled current, rather than electron-hole recombination, because depletion region widens rapidly.
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