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Examples ofcapacitive reactance
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Capacitivereactanceis inversely proportional to the rate of change of input voltage applied to the capacitor.
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This example is from Wikipedia and may be reused under a CC BY-SA license.Above this frequency, the inductor actually hascapacitivereactance.
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This example is from Wikipedia and may be reused under a CC BY-SA license.An antenna which is shorter than its resonant length hascapacitivereactance.
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This example is from Wikipedia and may be reused under a CC BY-SA license.These have a very low radiation resistance and a highcapacitivereactance, making them inefficient antennas.
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This example is from Wikipedia and may be reused under a CC BY-SA license.Above the resonant frequency thecapacitivereactancebecomes the dominant part of the impedance.
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This example is from Wikipedia and may be reused under a CC BY-SA license.An antenna shorter than a quarter wavelength presentscapacitivereactanceto the transmission line.
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This example is from Wikipedia and may be reused under a CC BY-SA license.If the tower is very short, it will have itscapacitivereactancetuned out by this matching network.
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This example is from Wikipedia and may be reused under a CC BY-SA license.The "director" element, on the other hand, being shorter than /2 has acapacitivereactancewith the voltage phase lagging that of the current.
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This example is from Wikipedia and may be reused under a CC BY-SA license.Electrical impedance is the vector sum of electrical resistance,capacitivereactance, and inductive reactance.
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This example is from Wikipedia and may be reused under a CC BY-SA license.The antenna usually acts as a capacitor, because antennas shorter than a quarter-wavelength havecapacitivereactance.
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This example is from Wikipedia and may be reused under a CC BY-SA license.Electrically short antennas have considerablecapacitivereactance, so to make them resonant at the operating frequency an inductor (loading coil) is added in series with the antenna.
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This example is from Wikipedia and may be reused under a CC BY-SA license.This allows the antenna to be made much shorter than the normal length of a quarter-wavelength, and still be resonant, by cancelling out thecapacitivereactanceof the short antenna.
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This example is from Wikipedia and may be reused under a CC BY-SA license.Thecapacitivereactancein the bridge will exactly oppose the inductive reactance of the load when the bridge is balanced, allowing the load's resistance and reactance to be reliably determined.
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This example is from Wikipedia and may be reused under a CC BY-SA license.Energy passing as alternating current is also lost as it travels but, since it changes direction, there is an additional loss proportional to thecapacitivereactancetimes the current.
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This example is from Wikipedia and may be reused under a CC BY-SA license.These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
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