Q. With the rise of temperature the resistivity of a semiconductor
A) Remains unchanged
B) Increases
C) Decreases
D) First increases and then decreases
Explanation
(c) For semiconductor the temperature coefficient of resistance ($\alpha$) is negative. Hence, resistivity will decrease with the temperature rise.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.