About: Relative Permittivity

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An Entity of Type : http://qudt.org/schema/qudt/Unit, within Data Space : foodie-cloud.org, foodie-cloud.org associated with source document(s)

Attributes	Values
type	Unit
label	Relative Permittivity (en)
isDefinedBy	QUDT VOCAB Units of Measure Release 2.1.33
Description	The \(\textit{relative permittivity}\) of a material under given conditions reflects the extent to which it concentrates electrostatic lines of flux. In technical terms, it is the ratio of the amount of electrical energy stored in a material by an applied voltage, relative to that stored in a vacuum. Likewise, it is also the ratio of the capacitance of a capacitor using that material as a dielectric, compared to a similar capacitor that has a vacuum as its dielectric. Relative permittivity is a dimensionless number that is in general complex. The imaginary portion of the permittivity corresponds to a phase shift of the polarization P relative to E and leads to the attenuation of electromagnetic waves passing through the medium.</p> <p>\(\epsilon_r(w) = \frac{\epsilon(w)}{\epsilon_O}\)\ where \(\epsilon_r(w)\) is the complex frequency-dependent absolute permittivity of the material, and \(\epsilon_O\) is the vacuum permittivity. (http://qudt.org/schema/qudt/LatexString)
http://qudt.org/schema/qudt/dbpediaMatch	dbpedia:Relative_static_permittivity
http://qudt.org/sc...asDimensionVector	http://qudt.org/vocab/dimensionvector/A0E0L0I0M0H0T0D1
http://qudt.org/sc...ormativeReference	http://en.wikipedia.org/wiki/Relative_permittivity?oldid=489664437 http://www.ncert.nic.in/html/learning_basket/electricity/electricity/charges%20&%20fields/absolute_permittivity.htm http://en.wikipedia.org/wiki/Relative_static_permittivity?oldid=334224492
http://qudt.org/sc...t/qkdvDenominator	http://qudt.org/vocab/dimensionvector/A0E2L-3I0M-1H0T4D0
http://qudt.org/sc...udt/qkdvNumerator	http://qudt.org/vocab/dimensionvector/A0E2L-3I0M-1H0T4D0
http://qudt.org/schema/qudt/symbol	εᵣ
has quantity kind	Dimensionless Ratio
http://qudt.org/sc.../applicableSystem	http://qudt.org/vocab/sou/CGS
http://qudt.org/sc...versionMultiplier	0.000000 (xsd:double)
http://qudt.org/schema/qudt/ucumCode	[eps_0] (http://qudt.org/schema/qudt/UCUMcs)
is http://qudt.org/sc...dt/applicableUnit of	Compressibility Factor Dimensionless Ratio efficiency Gain Heat Capacity Ratio Length Ratio Linear Strain Luminous Flux Ratio Mole Fraction Positive Dimensionless Ratio Payload Ratio Positive Dimensionless Ratio Relative Atomic Mass Relative Mass Defect Relative Molecular Mass Resistance Ratio Shear Strain Specific Heats Ratio Linear Strain Thermal Efficiency Thrust To Weight Ratio Time Ratio Voltage Ratio Volume Strain

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