Part 11: Characteristic Numbers·115 entries

113 / 115

11-8.21

Ampère number

URNurn:iso:std:iso:80000:-11:ed-2:en:item:11-8.21

https://metanorma.github.io/isq-smart/quantities/part-11/t11-8.21
urn:iso:std:iso:80000:-11:ed-2:en:item:11-8.21

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-11:ed-2:en:item:11-8.21

IEC

urn:iec:std:iec:80000-11:2019:::item:11-8.21

Designations

ENAmpère number

FRnombre d'Ampère

Symbol

A m

Notation systems

Rendered

A m

AsciiMath

Am

LaTeX

A m

Definition

relation between electric surface current and magnetic field strength in an electrically conducting liquid, expressed by

$A m = I_{A} / l H$ ; where

$I_{A}$ :: is electric surface current,

$l$ :: is characteristic length (ISO 80000-3: Space and time), and

$H$ :: is magnetic field strength (IEC 80000-6: Electromagnetism)

relation entre le courant électrique de surface et le champ magnétique dans un liquide conducteur de courant électrique, exprimée par:

$A m = I_{A} / l H$ ; où

$I_{A}$ :: est le courant électrique de surface;

$l$ :: est la longueur caractéristique (ISO 80000-3: Space and time); et

$H$ :: est le champ magnétique (IEC 80000-6: Electromagnetism)

Notes

This number is also called ((magnetic field number)).

The electric surface current is given by

$I_{A} = ρ_{A} l μ E$ ; where

$ρ_{A}$ :: is surface density of electric charge (IEC 80000-6: Electromagnetism),

$l$ :: is characteristic length (ISO 80000-3: Space and time),

$μ$ :: is mobility (ISO 80000-10: Atomic and nuclear physics) of charge carriers, and

$E$ :: is electric field strength (IEC 80000-6: Electromagnetism).

Ce nombre est aussi appelé nombre de champ magnétique.

Le courant électrique de surface est donné par:

$I_{A} = ρ_{A} l μ E$ ; où

$ρ_{A}$ :: est la charge électrique surfacique (IEC 80000-6: Electromagnetism);

$l$ :: est la longueur caractéristique (ISO 80000-3: Space and time);

$μ$ :: est la mobilité (ISO 80000-10: Atomic and nuclear physics) des porteurs de charge; et

$E$ :: est le champ électrique (IEC 80000-6: Electromagnetism).

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:t11-8.21

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	11-8.21
skosxl:prefLabel	"Ampère number"@en
skosxl:altLabel	"Am"@en
skos:definition	relation between electric surface current and magnetic field strength in an electrically conducting liquid, expressed by…
skos:note	This number is also called ((magnetic field number)). The electric surface current is given by stem:[I_A = rho_A l mu …
isq:hasDimension	isq:Dimension
smart:hasBindingnessType	bindingness-type:normative
dcterms:isPartOf	isq:part-11

Related Entities

isq:QuantityShape isq:part-11 isq:Unit isq:Dimension isq:hasDimension smart:TermEntry