It is directly proportional to the dielectric constant (Table I) and inversely proportional to the thickness of the dielectric.Īs the charge and voltage on a given capacitor are increased, at some point the dielectric will no longer be able to insulate the charges from each other. The capacitance of a device depends mostly on the plate geometry and the nature of the dielectric. The energy stored in a capacitor is the energy required to move the stored charge through the potential of the capacitor. The ratio of the charge magnitude on each plate to the electric potential (voltage) between the plates is known as capacitance. This situation gives rise to a voltage which increases proportionally with the charge. As the stored charge increases, the electric field across the dielectric increases.
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