Q. If $n_{e}$ and $n_{h}$ are the number of electrons and holes in a semiconductor heavily doped with phosphorus, then
A) $n_{e} > > n_{h}$
B) $n_{e} < < n_{h}$
C) $n_{e} \leq n_{h}$
D) $n_{e} = n_{h}$
Explanation
(a) Phosphorus is a pentavalent impurity so $n_{e} > n_{h}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.