MHT CET Physics question

Not in JEE Advanced syllabus

In a semiconductor diode, reverse bias current is due to drift of free electrons and holes caused by

(A)Impurity atoms
(B)Thermal excitationCorrect
(C)Crystal structure
(D)Battery

Answer: (B)

Solution

The reverse current is due to minority carriers (electrons and holes) generated by thermal excitation of covalent bonds, which drift across the junction under the reverse

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Question ID VK-085462