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.
A parallel-plate capacitor with plates of area LW and plate separation t has the region between its plates filled with wedges of two dielectric materials as shown. Assume t is much less than both L and W. (a) Determine its capacitance. (b) Should the capacitance be the same if the labels k1 and k2 are interchanged? Demonstrate that your expression does or does not have this property. (c) Show that if k1 and k2 approach equality to a common value k, your result becomes the same as the capacitance of a capacitor containing a single dielectric: C = k∈0LW/t.
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