About: Impedance

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

Attributes	Values
type	Quantity Kind
label	Impedance (en)
isDefinedBy	QUDT Quantity Kind Vocabulary Version 2.1.29
seeAlso	Electric Current Phasor Voltage Phasor
http://qudt.org/sc...dt/applicableUnit	ohm
http://qudt.org/schema/qudt/dbpediaMatch	dbpedia:Electrical_impedance
http://qudt.org/sc...asDimensionVector	http://qudt.org/vocab/dimensionvector/A0E-2L2I0M1H0T-3D0
http://qudt.org/sc...ormativeReference	http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=131-12-43 http://en.wikipedia.org/wiki/Electrical_impedance http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm?csnumber=31891
http://qudt.org/sc...ormativeReference	http://www.iso.org/iso/catalogue_detail?csnumber=43012
http://qudt.org/sc...t/latexDefinition	\(\underline{Z} = \underline{U} / \underline{I}\), where \(\underline{U}\) is the voltage phasor and \(\underline{I}\) is the electric current phasor. (http://qudt.org/schema/qudt/LatexString)
http://qudt.org/schema/qudt/latexSymbol	\(\underline{Z}\) (http://qudt.org/schema/qudt/LatexString)
http://qudt.org/sc...inTextDescription	"Impedance" is the measure of the opposition that a circuit presents to the passage of a current when a voltage is applied. In quantitative terms, it is the complex ratio of the voltage to the current in an alternating current (AC) circuit. Impedance extends the concept of resistance to AC circuits, and possesses both magnitude and phase, unlike resistance, which has only magnitude. When a circuit is driven with direct current (DC), there is no distinction between impedance and resistance; the latter can be thought of as impedance with zero phase angle.
is seeAlso of	Admittance Modulus Of Impedance Quality Factor Reactance Resistance Susceptance

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