A 25.0 µF capacitor is connected to a 24.0 V power supply. Once the capacitor is fully charged the power supply is disconnected so that the charge on the capacitor remains constant. A piece of material having a dielectric constant of 3.75 is placed between the plates, completely filling the space between them. By how much did the energy stored in the capacitor change during the insertion? -9.9 mJ -5.28 mJ -3.6 MJ -2.64 mJ

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Dielectric Constant Of Water

Water constitutes about 70% of earth.  Some important distinguishing properties of water are high molar concentration, small dissociation constant and high dielectric constant.

Electrostatic Potential and Capacitance

An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particles. The electric force is the force which acts between two stationary charges. It is also called Coulomb force.