MHT CET 2024 Physics question

Not in JEE Advanced syllabus

The depletion in p-n junction region is caused by

(A)drift of electrons
(B)migration of impurity ions
(C)diffusion of charge carriersCorrect
(D)drift to holes

Answer: (C)

Solution

When a p-n junction is formed, electrons from the n-side (high electron concentration) diffuse into the p-side and holes from the p-side diffuse into the n-side because of the concentration gradient. The diffusing carriers recombine near the junction, leaving behind immobile positive donor ions on the n-side and

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Question ID VK-093195