sähkönjohtuvuus
Sähkönjohtuvuus, often referred to as electrical conductivity, is a measure of a material's ability to conduct electric current. It quantifies how easily electric charge carriers, typically electrons or ions, can move through a substance when an electric field is applied. Materials with high electrical conductivity are known as conductors, while those with low conductivity are insulators.
The reciprocal of electrical conductivity is electrical resistivity, which measures a material's opposition to the flow
Metals like copper, silver, and gold are excellent conductors due to their free electrons that can readily