Which of the following is correct with respec | vedclass

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(D) Statement $I$ is incorrect because electrons do not accumulate in the depletion region; rather, they undergo recombination with holes.Statement $I

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$II, III$ and $IV$

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(D) Statement $I$ is incorrect because electrons do not accumulate in the depletion region; rather, they undergo recombination with holes.Statement $II$ is correct: The drift current is caused by the electric field in the depletion region, which moves minority carriers (electrons from $p$ to $n$ and holes from $n$ to $p$), resulting in a drift current from $p$-side to $n$-side.Statement $III$ is correct: When an electron diffuses from the $n$-region to the $p$-region, the donor atom in the $n$-region loses an electron and becomes a positively charged ionised donor.Statement $IV$ is correct: Diffusion causes electrons to move from the $n$-side to the $p$-side, where they recombine with holes.Therefore, statements $II, III$ and $IV$ are correct.

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