When n-type semiconductor is heated?
(A) number of electrons increases while that of holes decreases
(B) number of holes increases while that of electrons decreases
(C) number of electrons and holes remain the same
(D) number of electron and holes increases equally


Answer: (B)

Explanation: When n-type semiconductor is heated, it acquires energy and due to this free electrons are created. These electrons on freeing create vacancies which are called Holes.

So, option (B) is correct.

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