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Define capacitance with respect to physical structure and electrical function?
Wiki User
∙ 11y ago
capacitance, in electricity, capability of a body, system, circuit, or device for storing electric charge. Capacitance is expressed as the ratio of stored charge in coulombs to the impressed potential difference in volts. The resulting unit of capacitance is the farad [for Michael Faraday]. In an electric circuit the device designed to store charge is called a capacitor. An ideal capacitor, i.e., one having no resistance or inductance, may be spoken of as a capacitance. When an alternating current flows through a capacitor, the capacitor produces a reactance that resists the current (see impedance). While every element of a circuit has some capacitance, it is a goal of good design to reduce such unwanted or stray capacitance to a minimum.
Wiki User
∙ 11y ago
Capacitance is a measure of a component's ability to store electrical energy in an electric field formed between two conductive surfaces separated by an insulating material, known as a dielectric. It is determined by the size of the conductive surfaces, the distance between them, and the properties of the dielectric material. Capacitance is typically measured in farads (F) and is used to store and release electrical energy in electronic circuits.
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What happens to capacitance if voltage is increased?
If voltage is increased, capacitance remains constant. Capacitance is determined by the physical properties of the capacitor, such as plate area, distance between plates, and permittivity of the material, and is not affected by changes in voltage applied across the capacitor.
What happens to the capacitance fi the charge on the plates of a capacitor is doubled?
If the charge on the plates of a capacitor is doubled, the capacitance remains the same. Capacitance is determined by the physical dimensions and properties of the capacitor, such as the area of the plates, the distance between them, and the material between them.
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What is the difference between capacitor and capacitance?
A capacitor is a device that stores an electrical charge, or if you prefer- resists any change in voltage applied to it. Capacitance is a measure of the size or ability of a capacitor to do that. This is the Farad
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What happens to a capacitance if the plates have a charge that is doubled?
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