Semiconductor Electronics Materials Devices and Simple Circuits - Result Question 56
57. When $n$-type semiconductor is heated [1989]
(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 same
(d) number of electrons and holes increases equally.
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Answer:
Correct Answer: 57. (d)
Solution:
- (d) Due to heating, when a free electron is produced then simultaneously a hole is also produced.
