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Namespace Prefixes

PrefixIRI
n5http://qudt.org/vocab/quantitykind/
dctermshttp://purl.org/dc/terms/
n8http://qudt.org/vocab/sou/
n3http://qudt.org/schema/qudt/
n2http://qudt.org/vocab/unit/
rdfshttp://www.w3.org/2000/01/rdf-schema#
n6http://qudt.org/vocab/dimensionvector/
n9http://qudt.org/2.1/vocab/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
xsdhhttp://www.w3.org/2001/XMLSchema#

Statements

Subject Item
n2:PERMITTIVITY_REL
rdf:type
n3:Unit
rdfs:label
Relative Permittivity
rdfs:isDefinedBy
n9:unit
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.</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.
n3:dbpediaMatch
http://dbpedia.org/resource/Relative_static_permittivity
n3:hasDimensionVector
n6:A0E0L0I0M0H0T0D1
n3:informativeReference
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://en.wikipedia.org/wiki/Relative_permittivity?oldid=489664437
n3:qkdvDenominator
n6:A0E2L-3I0M-1H0T4D0
n3:qkdvNumerator
n6:A0E2L-3I0M-1H0T4D0
n3:symbol
εᵣ
n3:hasQuantityKind
n5:DimensionlessRatio
n3:applicableSystem
n8:CGS
n3:conversionMultiplier
8.85419e-12
n3:ucumCode
[eps_0]