Q. In a semiconducting material the mobilities of electrons and holes are $\mu_{e}$ and $\mu_{h}$ respectively. Which of the following is true
A) $\mu_{e} > \mu_{h}$
B) $\mu_{e} < \mu_{h}$
C) $\mu_{e} = \mu_{h}$
D) $\mu_{e} < 0;\ \mu_{h} > 0$
Explanation
(a) Because electrons need less energy to move
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.