We have taken a saturated solution of $\mathrm{AgBr} . \mathrm{K}_{\text {sp }}$ of AgBr is $12 \times 10^{-14}$. If $10^{-7}$ mole of $\mathrm{AgNO}_3$ are added to 1 litre of this solution find conductivity (specific conductance) of this solution in terms of $10^{-7} \mathrm{~S} \mathrm{~m}^{-1}$ units. Given, $\lambda_{\left(\mathrm{Ag}^{+}\right)}^0=6 \times 10^{-3} \mathrm{Sm}^2 \mathrm{~mol}^{-1}, \lambda_{\left(\mathrm{BF}^{-}\right)}^0=8 \times 10^{-3} \mathrm{Sm}^2 \mathrm{~mol}^{-1}, \lambda_{\left(\mathrm{NO}_5\right)}^0=7 \times 10^{-3} \mathrm{Sm}^2 \mathrm{~mol}^{-1}$.