Problem 3.349

A parallel-plate air condenser whose each plate has an area $S=100 \mathrm{~cm}^{2}$ is connected in series to an ac circuit. Find the electric field strength amplitude in the capacitor if the sinusoidal current amplitude in lead wires is equal to $I_{m}=1.0 \mathrm{~mA}$ and the current frequency equals $\omega=1.6 \cdot 10^{7} \mathrm{~s}^{-1}$.