unit:PERMITTIVITY_REL

URI: http://qudt.org/vocab/unit/PERMITTIVITY_REL

Type
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. $$\epsilon_r(w) = \frac{\epsilon(w)}{\epsilon_O}$$, where $\epsilon_r(w)$ is the complex frequency-dependent absolute permittivity of the material, and $\epsilon_O$ is the vacuum permittivity.

Properties
qudt:conversionMultiplier
0.000000000008854187817
qudt:conversionMultiplierSN
8.854187817E-12
qudt:symbol
εᵣ
qudt:ucumCode
[eps_0]
Annotations
dcterms: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. $$\epsilon_r(w) = \frac{\epsilon(w)}{\epsilon_O}$$, where $\epsilon_r(w)$ is the complex frequency-dependent absolute permittivity of the material, and $\epsilon_O$ is the vacuum permittivity.
rdfs:label
Relative Permittivity(en)
View as:  CSV

Work in progress

RDF/XML
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  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.
  $$\epsilon_r(w) = \frac{\epsilon(w)}{\epsilon_O}$$,
   where $\epsilon_r(w)$ is the complex frequency-dependent absolute permittivity of the material,
    and $\epsilon_O$ is the vacuum permittivity.
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TURTLE
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  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.
  $$\\epsilon_r(w) = \\frac{\\epsilon(w)}{\\epsilon_O}$$,
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JSON
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JSON-LD
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