juhtuvust
Juhtuvust is a material property that describes how easily electric current can flow through a substance. In scientific terms it is the ability of a material to conduct electricity and is expressed as the conductivity, with the SI unit siemens per metre (S/m). It is the reciprocal of resistivity, and its magnitude spans many orders of magnitude across different materials.
Charge transport responsible for juhtuvust occurs in several ways. In metals, conduction is primarily electronic, driven
The conductivity σ is governed by the density and mobility of charge carriers. A common relation is σ
Measurement and typical ranges vary widely. Conductivity is measured with methods such as four-point probes, impedance
Applications of juhtuvust include electrical wiring, electronic devices, energy storage and conversion systems (batteries and fuel