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Learn about capacitance in parallel-plate capacitors, the dielectrics used, energy stored, and the density of electric energy formula. Understand the relationship between charge, voltage, and capacitance. Explore the constant of proportionality, C, in the Q = CV equation.
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Q = CV The constant of proportionality, C , in the last relation is called the capacitance of the capacitor.
Important: the capacitance C is a constant for a given capacitor; it does not depend on charge Q or voltage V.
Important: this formula is valid for any area with electric field!!!