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PN Junction Diode – 21

21. Which one is the valid statement with respect to PN junction diode ?

(a) Under forward bias, the electrons from P region & holes from N region drift towards the junction
(b) A junction diode cannot be used as a switch in electrical circuits
(c) Depletion capacitance is voltage independent
(d) Diffusion current of minority carriers is proportional to the concentration gradient

Answer : (d)

Explanation : No answer description available for this question. Let us discuss.

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