Resistivity

Definition

Resistivity is a measure of how strongly a material opposes the flow of electric current. It quantifies the resistance per unit length and cross-sectional area of a material.

Related terms

Conductivity: The opposite of resistivity, conductivity measures how easily electric current can flow through a material.

Resistance:

Resistance is the property that determines how much an object or substance impedes the flow of electric current.

Ohm's Law:

Ohm's Law relates voltage, current, and resistance in an electrical circuit and states that V = IR (voltage equals current multiplied by resistance).