Problem-1 An air-filled parallel plate capacitor is made from two small, circular disks of radius r = 1.50cm which are separated by a distance of d = 2.00 x 10-6m. (a) What is the capacitance of this capacitor? (b) If two of these are connected in-parallel with each other, and then the parallel combination is connected to a V = 9.00V battery, what is the total charge on each individual capacitor after they are completely charged up?

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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.