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Which of the following statements is not true?(a) The resistance of intrinsic semiconductor decreases with the increase of temperature(b) Doping pure Si with trivalent impurities gives p-type semiconductors(c) The majority carriers in n-type semiconductors are holes(d) A p-n junction can act as a semiconductor diodeI got this question in an interview.This interesting question is from Intrinsic Semiconductor topic in portion Semiconductor Electronics : Materials, Devices and Simple Circuits of Physics – Class 12

Answer»

The correct answer is (c) The MAJORITY carriers in n-type semiconductors are holes

To explain: The majority CHARGE carriers in n-type semiconductors are electrons, not holes. It is MADE by adding an impurity to a pure semiconductor such as SILICON or germanium. All the other statements are true.



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