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Section 6-515 entries

6-51.1impedance, complex impedance 6-51.2impedance of vacuum, wave impedance in vacuum 6-51.3resistance 6-51.4reactance 6-51.5apparent impedance

6-51.1

impedance, complex impedance

URNurn:iec:std:iec:80000-6:2022-11:::6-51.1

Download RDF.jsonld .ttl

https://metanorma.github.io/isq-smart/quantities/part-6/t6-51.1
urn:iec:std:iec:80000-6:2022-11:::6-51.1

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-6:ed-1:en:item:6-51.1

IEC

urn:iec:std:iec:80000-6:2022-11:::item:6-51.1

Designations

ENimpedance

FRimpédance

ENcomplex impedance

FRimpédance complexe

Symbol

\underset{̲}{Z}

Notation systems

Rendered

\underset{̲}{Z}

AsciiMath

ul Z

LaTeX

\underline{Z}

Definition

scalar quantity given by the quotient of voltage phasor $\underset{̲}{U}$ (voltage phasor) and electric current phasor $\underset{̲}{I}$ (electric current phasor)

\underset{̲}{Z} = \underset{̲}{U} / \underset{̲}{I}

grandeur scalaire donnée par le quotient du phaseur de tension électrique $\underset{̲}{U}$ (voltage phasor) et du phaseur de courant électrique $\underset{̲}{I}$ (electric current phasor)

\underset{̲}{Z} = \underset{̲}{U} / \underset{̲}{I}

Units

O h m

ohm

View related quantities →

k g \cdot m^{2} \cdot s^{- 3} \cdot A^{- 2}

kilogram square metre per second cubed ampere squared

View related quantities →

Notes

$\underset{̲}{Z} = R + j X$ , where $R$ is resistance (resistance) and $X$ is reactance (reactance).

$j$ is the imaginary unit.

$\underset{̲}{Z} = | Z | e^{j φ}$

See IEC 60050-131,locality:item="131-12-43".

$\underset{̲}{Z} = R + j X$ , où $R$ est la résistance (resistance) et $X$ est la réactance (reactance)

$j$ est l'unité imaginaire.

$\underset{̲}{Z} = | Z | e^{j φ}$

Voir l'IEC 60050-131,droploc%locality:item="131-12-43".

Referenced by

resistance reactance admittance quality factor

Concept HierarchyPendrill (2024)

1dimensionless quantitiesLevel 0 · Kind

Broader concepts

◇ dimensionless quantities

Ontology
isq:Quantity smart:TermEntry

Class Hierarchy

smart:Entity smart:TermEntryisq:Quantity

A physical quantity as defined in ISO/IEC 80000, with associated symbols, definitions, and units of measurement.

Instance IRI

isq:t6-51.1

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	6-51.1
skosxl:prefLabel	"impedance"@en
skosxl:altLabel	"complex impedance"@en"ul Z"@en
skos:definition	scalar quantity given by the quotient of voltage phasor stem:[ul U] (<<t6-50>>) and electric current phasor stem:[ul I] …
skos:note	stem:[ul Z = R + "j"X], where stem:[R] is resistance (<<t6-51.3>>) and stem:[X] is reactance (<<t6-51.4>>). stem:["j"] …
isq:hasUnit	Ohm (ohm)kgm^2s^(-3)*A^(-2) (kilogram square metre per second cubed ampere squared)
isq:hasDimension	isq:Dimension
smart:hasBindingnessType	bindingness-type:normative
dcterms:isPartOf	isq:part-6

Related Entities

isq:QuantityShape isq:part-6 isq:Unit isq:Dimension isq:hasDimension smart:TermEntry