Physics - Semiconductors Question with Solution | TestHub

In a pure silicon, number of electrons and holes per unit volume are $1.6\times 10^{16}{\mathrm{m}}^{-3}$. If silicon is doped with Boron in a way that on doping hole density increases to $4\times 10^{22}{\mathrm{m}}^{-3}$. Then electron density in doped semiconductor will be