A parallel plate capacitor of plate separation 2 mm is connected in an electric circuit having source voltage $600 V$. If plate area is 60 $c{m}^2$ , then assuming that capacitor is fully charged in time ${10}^{-6}\sec$ , the average value of displacement current is $x_0\times {10}^{-2}A$ . The value of $x_0$  is $\left({\epsilon }_0=8.85\times {10}^{-12}\right)$