Question

A p-type silicon sample has a higher conductivity compared to an n-type silicon sample having the same dopant concentration

• A. True
• B. False

Answer 1

The correct option is B False

Ans : (b)
The given statement is false, because for a given semiconductor the electron mobility $\left({\mu }_n\right)$ is always higher than the hole mobility $\left({\mu }_p\right)$.
${\mu }_n>{\mu }_p$ (for agiven semiconductor) we know that, the conductivity of a given n-type semiconductor
${\sigma }_n=nq{\mu }_n$
the conductivity of agiven p-type semiconductor.
${\sigma }_p=pq{\mu }_p$
given that $n=p=$ same dopant concentration
$q=1.602\times {10}^{-19}C$
So, ${\sigma }_n>{\sigma }_p$