The potential difference between the plates of a parallel-plate capacitor is kept constant by a 20.0 V battery connected to it. If the area of the plate is 10 cm2 and the distance between the plates is 1 mm, what is the charge on the plates? )ε0 = 8.85 × 10-12 C2/N • m2) a. 0.177 nC b. 15.1 nC c. 4.43 nC d. none of the given choices e. 8.85 nC

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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.