The depletion layer in the p-n junction region is caused by (a) drift of holes (b) diffusion of charge carriers (c) migration of impurity ions (d) drift of electrons

Answer: (b). Carriers diffuse across the junction due to the concentration difference and recombine. The region left with only immobile ions is the depletion layer. So the answer is (b) diffusion of charge carriers.

The depletion layer in the p-n junction region is caused by | NEET 1991 (AIPMT)

Q129NEET 1991 · AIPMTEasy

P-N Junction Diode

The depletion layer in the p-n junction region is caused by

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Answer: (b)

Carriers diffuse across the junction due to the concentration difference and recombine.
The region left with only immobile ions is the depletion layer.
So the answer is (b) diffusion of charge carriers.

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P-N Junction Diode question from NEET 1991 (AIPMT)

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