Resistivity is a fundamental property of materials that quantifies how strongly they resist the flow of electric current. It is defined as the resistance of a uniform material of unit length and unit cross-sectional area and is typically represented by the symbol $$\rho$$. The resistivity of a material is affected by its temperature, composition, and physical state, influencing its ability to conduct electricity in various applications.
congrats on reading the definition of Resistivity. now let's actually learn it.