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6-8

electric current density

URNurn:iec:std:iec:80000-6:2022-11:::6-8

https://metanorma.github.io/isq-smart/quantities/part-6/t6-8
urn:iec:std:iec:80000-6:2022-11:::6-8

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-6:ed-1:en:item:6-8

IEC

urn:iec:std:iec:80000-6:2022-11:::item:6-8

Designations

ENelectric current density

FRdensité de courant électrique

FRdensité surfacique de courant électrique

Symbol

J

Notation systems

Rendered

J

AsciiMath

bb(ii(J))

LaTeX

\mathbf{\mathit{J}}

Definition

vector quantity equal to the sum, for the charge carriers within a volume element of quasi-infinitesimal volume $V$ , of the products of their electric charge $Q_{i}$ and their velocity $v_{i}$ , divided by the volume $V$ , given by

J (r) = J = ρ v

where $i$ is the rank of the charge carrier

grandeur vectorielle égale à la somme, pour les porteurs de charge au sein d'un élément volumique d'un volume quasi-infinitésimal $V$ , des produits de leur charge électrique $Q_{i}$ et de leur vitesse $v_{i}$ , divisée par le volume $V$ , donnée par

J (r) = J = ρ v

où $i$ est le rang du porteur de charge

Units

\frac{A}{m^{2}}

ampere per square metre

View related quantities →

m^{- 2} \cdot A

ampere per square metre

View related quantities →

Notes

There can be different charge carriers with different velocities.

Electric current $I$ (electric current) through a surface $S$ is

I = \int_{S}^{} J e_{n} d A

where $e_{n} d A$ is the vector surface element.

See IEC 60050-121,locality:item="121-11-11".

Il peut y avoir des porteurs de charges différents avec des vitesses différentes.

Le courant électrique $I$ (electric current) traversant une surface $S$ est donné par

I = \int_{S}^{} J e_{n} d A

où $e_{n} d A$ est l'élément vectoriel de surface.

Voir l'IEC 60050-121,droploc%locality:item="121-11-11".

Referenced by

electric current total current density conductivity

Concept HierarchyPendrill (2024)

L⁻² IL⁻² I quantitiesLevel 0 · Kind

Broader concepts

◇ L⁻² I 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:t6-8

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	6-8
skosxl:prefLabel	"electric current density"@en
skosxl:altLabel	"bb(ii(J))"@en
skos:definition	vector quantity equal to the sum, for the charge carriers within a volume element of quasi-infinitesimal volume stem:[V]…
skos:note	There can be different charge carriers with different velocities. Electric current stem:[I] (<<t6-1>>) through a surfac…
isq:hasUnit	A/m^2 (ampere per square metre)m^(-2)*A (ampere per square metre)
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