Q. The relation between number of free electrons $(n)$ is a semiconductor and temperature $(T)$ is given by
A) $n \propto T$
B) $n \propto T^{2}$
C) $n \propto \sqrt{T}$
D) $n \propto T^{3/2}$
Explanation
(d) For semiconductor, $n = AT^{3/2}e^{- E_{g}/2kT};$
So, $n \propto T^{3/2}$.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.