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12-23

Thomson coefficient

URNurn:iso:std:iso:80000:-12:ed-2:en:item:12-23

https://metanorma.github.io/isq-smart/quantities/part-12/t12-23
urn:iso:std:iso:80000:-12:ed-2:en:item:12-23

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-12:ed-2:en:item:12-23

IEC

urn:iec:std:iec:80000-12:2019:::item:12-23

Designations

ENThomson coefficient

FRcoefficient de Thomson

Symbol

μ

Notation systems

Rendered

μ

AsciiMath

mu

LaTeX

\mu

Definition

quotient of Thomson heat power (ISO 80000-5: Thermodynamics) developed, and the electric current (IEC 80000-6: Electromagnetism) and temperature (ISO 80000-5: Thermodynamics) difference

quotient de la puissance thermique dégagée par effet Thomson (ISO 80000-5: Thermodynamics), par le courant électrique (IEC 80000-6: Electromagnetism) et la différence de température (ISO 80000-5: Thermodynamics)

Units

\frac{V}{K}

volt per kelvin

View related quantities →

k g \cdot m^{2} \cdot s^{- 3} \cdot A^{- 1} \cdot K^{- 1}

kilogram square metre per second cubed per ampere kelvin

View related quantities →

Notes

$μ$ is positive if heat is developed when the temperature decreases in the direction of the electric current.

$μ$ est positif s'il y a dégagement de chaleur lorsque la température décroît dans le sens du courant électrique.

Concept HierarchyPendrill (2024)

L² M T⁻³ I⁻¹ Θ⁻¹L² M T⁻³ I⁻¹ Θ⁻¹ quantitiesLevel 0 · Kind

Broader concepts

◇ L² M T⁻³ I⁻¹ Θ⁻¹ 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:t12-23

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	12-23
skosxl:prefLabel	"Thomson coefficient"@en
skosxl:altLabel	"mu"@en
skos:definition	quotient of Thomson heat power (<<iso80000-5>>) developed, and the electric current (<<iec80000-6>>) and temperature (<<…
skos:note	stem:[mu] is positive if heat is developed when the temperature decreases in the direction of the electric current.
isq:hasUnit	V/K (volt per kelvin)kgm^2s^(-3)A^(-1)K^(-1) (kilogram square metre per second cubed per ampere kelvin)
isq:hasDimension	isq:Dimension
smart:hasBindingnessType	bindingness-type:normative
dcterms:isPartOf	isq:part-12

Related Entities

isq:QuantityShape isq:part-12 isq:Unit isq:Dimension isq:hasDimension smart:TermEntry