The gap between the plates of a parallel-plate capacitor is filled with glass of resistivity \(\rho=100 \mathrm{G} \Omega \cdot \mathrm{m} .\) The capacitance of the capacitor equals \(C=4.0 \mathrm{nF}\). Find the leakage current of the capacitor when a voltage \(V=2.0 \mathrm{kV}\) is applied to it.