In Fig.77, the electrical circuit consists of two identical metal plates connected by identical metal springs to a 100 V battery. With the switch open, the plates are discharged, they are separated by a distance d=8 mm and they have a capacitance C=2 μF. When the switch is closed, the distance between the plates decreases by a factor of 0.5 1) Find the charge acquired by each plate of the capacitor. II) Find the elastic constant "k" of each spring. k mm AV Fig.77 k

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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.