Q. Which of the following statements is false?
A) The resistance of intrinsic semiconductor decreases with increase of temperature
B) Pure Si doped with trivalent impurities gives a p-type semiconductor
C) Majority carriers in an n-type semiconductor are holes
D) Minority carriers in a p-type semiconductor are electrons
Explanation
[Solution from source] In n-type semiconductors the majority carriers are electrons, not holes, so that statement is false. Intrinsic resistance does fall with temperature, trivalent doping does give p-type, and electrons are minority carriers in p-type. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.