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Capacitance in Parallel-Plate Capacitors

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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Capacitance in Parallel-Plate Capacitors

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  1. Capacitance

  2. Q = CV The constant of proportionality, C , in the last relation is called the capacitance of the capacitor.

  3. Important: the capacitance C is a constant for a given capacitor; it does not depend on charge Q or voltage V.

  4. Capacitance of a Parallel-PlateCapacitor

  5. Dielectrics

  6. Energy Stored in Capacitor

  7. Density of Electric Energy

  8. Important: this formula is valid for any area with electric field!!!

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