In an unbiased p-n junction, holes diffuse from the p-region to n-region because

MHT CET Physics question

Not in JEE Advanced syllabus

In an unbiased junction, holes diffuse from the -region to -region because

(A)free electrons in the -region attract them
(B)they move across the junction by the potential difference
(C)hole concentration in -region is more as compared to -regionCorrect
(D)All of the above

Answer: (C)

Solution

Diffusion occurs from the region of higher concentration to lower concentration; holes are plentiful in p-region and scarce in n-region. Attraction by

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Question ID VK-075036