(i) The width of depletion layer of a p – n junction decreases when the junction is forward biased.
(ii) The width of depletion layer of a p – n junction increases when the junction is reverse biased.
Class 12 Physics Chapter 14 Semiconductor Electronics Session 2024-2025.
What happens to the width of depletion layer of a p – n junction when it is (i) forward biased, (ii) reverse biased?
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(i) In forward bias, the depletion layer’s width decreases as the applied voltage reduces the junction’s potential barrier, allowing charge carriers to flow.
(ii) In reverse bias, the depletion layer’s width increases as the applied voltage strengthens the junction’s potential barrier, preventing current flow.
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