There is a minimum conductivity conditions for extrinsic semiconductor. What is the resulting minimum conductivity?
1
\({\sigma _{min}} = 2q{n_i}\sqrt {\frac{{{\mu _n}}}{{{\mu _p}}}}\)
2
\({\sigma _{min}} = \frac{{2{n_i}}}{q}\sqrt {{\mu _n}{\mu _p}}\)
3
\({\sigma _{min}} = 2q{n_i}\sqrt {{\mu _n}{\mu _p}}\)
4
\({\sigma _{min}} = \frac{{2{n_i}}}{q}\sqrt {\frac{{{\mu _n}}}{{{\mu _p}}}}\)