Modern Physics Ques 232

  1. Which of the following statements is not true?

$(1997,1 M)$

(a) The resistance of intrinsic semiconductors decreases with increase of temperature.

(b) Doping pure $Si$ with trivalent impurities give $p$-type semiconductors.

(c) The majority carriers in $n$-type semiconductors are holes.

(d) A $p-n$ junction can act as a semiconductor diode.

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Answer:

Correct Answer: 232.(c)

Solution:

  1. In $n$-type semiconductors, electrons are the majority charge carriers.


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