A pure semiconductor has equal electron and hole concentration of ${10}^{16}{\mathrm{m}}^{-3}.$ Doping by Indium increases ${\mathrm{n}}_{\mathrm{h}}$ to $4.5\times {10}^{22}{\mathrm{m}}^{-3}.$ What is ${\mathrm{n}}_{\mathrm{e}}$in the doped semiconductor?

• A

  ${10}^6{\mathrm{m}}^{-3}$

• B

  ${10}^{22}{\mathrm{m}}^{-3}$

• C

  $\frac{{10}^{22}}{4.5\times {10}^{22}}{\mathrm{m}}^{-3}$

• D

  $4.5\times {10}^{22}{\mathrm{m}}^{-3}$