JEE Main · PhysicsEasy
In a forward biased p-n junction, the width of the depletion layer
- A.increases
- B.decreases
- C.remains constant
- D.becomes zero
Show correct answer & step-by-step solution
Correct answer: B — decreases
Solution
- In forward bias, the positive terminal of the battery is connected to the p-side and the negative to the n-side.
- This setup pushes holes towards the junction from the p-side and electrons towards the junction from the n-side.
- The movement of carriers towards the junction reduces the width of the depletion region.
- Hence the answer is (B).
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