Find the conductivity of intrinsic Silicon at 300 K. It is given that n_i at 300 K in Silicon is $1.5\times {10}^{10} {\mathrm{cm}}^{-3}$ and the mobilities of electrons and holes in Silicon are $1300 {\mathrm{cm}}^2 {\mathrm{V}}^{-1}{\mathrm{s}}^{-1}$ and 500 cm²/ V-s respectively 

• A

  $4.32\times {10}^{-6} \mathrm{mho}/\mathrm{cm}$

• B

  $2.32\times {10}^{-5} \mathrm{mho}/\mathrm{cm}$

• C

  $3.42\times {10}^{-8} \mathrm{mho}/\mathrm{cm}$

• D

  $1.32\times {10}^{-5} \mathrm{ohm}/\mathrm{cm}$