Two conducting concentric spherical shells have radii a = 0.155 m and b = 0.27 m. b a (a) Express the capacitance of the two concentric shells in terms of radii a and b and the Coulomb constant k. c = | %3D 78 9 56 AV 80 HOME a b. d. h i 1 2 3 j k ke m + END Q VO BACKSPACE CLEAR DEL (b) Calculate the numerical value of the capacitance in F. (c) Express the capacitance C through the potential difference AV across the capacitor and charge Q.

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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.