Resistivisuus
Resistivisuus, also known as electrical resistivity, is a fundamental property of a material that quantifies how strongly it opposes the flow of electric current. It is an intrinsic characteristic, independent of the material's shape or size, and is expressed in units of ohm-meters (Ω·m).
Resistivisuus is defined mathematically as the ratio of the electric field within a material to the current
The resistivisuus of a material depends on various factors, including temperature, impurity levels, and structural properties.
Resistivisuus is an important parameter in electrical engineering, materials science, and geophysics. For instance, in geophysical
Resistivisuus is related to conductivity (σ) by the reciprocal relationship: resistivity (ρ) = 1 / conductivity. As a material becomes