A series combination of capacitors is reduced to a single capacitor by adding the sum of the inverses of each individual capacitor, then inverting that. The equation is C_eq = (1 / ((1 / C1) + (1 / C2) + (1 / C3) + ... +... More »

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A spherical capacitor consists of two hollow, concentric spheres of oppositely charged electrodes with an insulator in between them. Physicists consider Earth to be a huge spherical capacitor surrounded by the ionosphere... More »

Energy storage is the primary function of a capacitor. Capacitors are very common in many electronic components and come in different sizes with different capacitances. More »

The RC time constant is the product of the resistance and capacitance of a circuit, or R x C. It is used to describe the rate of charging when a battery is connected to a resistor and capacitor in series. RC circuits can... More »

The codes on a capacitor signify the capacitance, tolerance and voltage of the capacitor. The capacitor color code was developed for clarity even on very small capacitors, as decimal places may be difficult to see on the... More »

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The purpose of a capacitor is to store energy in the electric field between a pair of closely spaced conductors that are called plates, and these capacitors are used in electrical circuits as energy-storage devices. Capa... More »

A varactor diode is a diode with a capacitance that varies as the voltage across the terminals is changed. Varactor diodes are often found as voltage-controlled capacitors in frequency modulated radio transmitters and ph... More »

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