Physics - Capacitor Question with Solution | TestHub

A parallel plate capacitor has charge $5\times 10^{-6}\mathrm{C}$. A dielectric slab is inserted between the plates and almost fills the space between the plates. If the induced charge on one face of the slab is $4\times 10^{-6}\mathrm{C}$ then the dielectric constant of the slab is ________.