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← ScienceWhich outcome occurs when a semiconductor diode lacks doping?
A)High-resistance depletion region expands
B)Increased electron-hole recombination rate
C)Reduced built-in potential develops✓
D)Sustained avalanche breakdown current
💡 Explanation
A reduced built-in potential develops because the lack of doping prevents the **formation of a space charge region**. Therefore, no electric field opposes diffusion, and forward voltage decreases, rather than high reverse voltage conditions being met.
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