A capacitor consists of a set of two parallel plates of area A separated by a distance d. This capacitor is connected to a battery that maintains a constant potential difference between the plates. A slab of a dielectric material is inserted in the region between the plates so as to completely fill it. What changes would you observe? Only the charge in the capacitor would change. Both the charge in the capacitor and its capacitance would change. Nothing would change. Only the capacitance would change.

A capacitor consists of a set of two parallel plates of area A separated by a distance d. This capacitor is connected to a battery that maintains a constant potential difference between the plates. A slab of a dielectric material is inserted in the region between the plates so as to completely fill it. What changes would you observe? Only the charge in the capacitor would change. Both the charge in the capacitor and its capacitance would change. Nothing would change. Only the capacitance would change.