Wiedemann–Franz law
id:
wiedemann-franz-law-304-3605885
title:
Wiedemann–Franz law
text:
In physics, the Wiedemann–Franz law states that the ratio of the electronic contribution of the thermal conductivity (κ) to the electrical conductivity (σ) of a metal is proportional to the temperature (T). Theoretically, the proportionality constant L, known as the Lorenz number, is equal to where kB is Boltzmann's constant and e is the elementary charge. This empirical law is named after Gustav Wiedemann and Rudolph Franz, who in 1853 reported that κ/σ has approximately the same value for diff
brand slug:
wiki
category slug:
encyclopedia
description:
Law of physics
original url:
https://en.wikipedia.org/wiki/Wiedemann%E2%80%93Franz_law
date created:
date modified:
2024-03-10T21:37:57Z
main entity:
{"identifier":"Q944030","url":"https://www.wikidata.org/entity/Q944030"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/8/82/Lorenz-wiedemann-franzp.svg","width":552,"height":454}
fields total:
13
integrity:
15