An air-gap parallel-plate capacitor that has a plate area of 1.20 m2 and a separation of 1.40 mm is charged to 90 V. (a) What is the electric field between the plates? V kV/m 64.285 (b) What is the electric energy density between the plates? 18.28 v m)/m3 (c) Find the total energy by multiplying your answer from Part (b) by the volume between the plates. 30,72 (d) Determine the capacitance of this arrangement. nF (e) Calculate the total energy from U = 2CV2, and compare your answer with your result from Part (c).

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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.