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dielectric constant

noun, Electricity
Origin
1870-1875
1870-75
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for dielectric constant
  • The real and imaginary part of the dielectric constant.
  • When cooking temperature increased, the dielectric constant increased, while the loss factor and depth of penetration decreased.
  • However, there generally exists an inverse relationship between dielectric constant and dielectric breakdown strength.
British Dictionary definitions for dielectric constant

dielectric constant

noun
1.
another name for relative permittivity
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for dielectric constant

property of an electrical insulating material (a dielectric) equal to the ratio of the capacitance of a capacitor filled with the given material to the capacitance of an identical capacitor in a vacuum without the dielectric material. The insertion of a dielectric between the plates of, say, a parallel-plate capacitor always increases its capacitance, or ability to store opposite charges on each plate, compared with this ability when the plates are separated by a vacuum. If C is the value of the capacitance of a capacitor filled with a given dielectric and C0 is the capacitance of an identical capacitor in a vacuum, the dielectric constant, symbolized by the Greek letter kappa, kappa, is simply expressed as kappa = C/C0. Dielectric constant is a number without dimensions. It denotes a large-scale property of dielectrics without specifying the electrical behaviour on the atomic scale

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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