**Resistivity: Definition, Resistance, Equation & Wire | StudySmarter**
https://www.studysmarter.us/school/physics/electricity/resistivity/

Here is the equation that captures the relationship between resistance and resistivity: Here, R is the resistance, ρ is the resistivity, L is the length of the conductor, and A is its cross-section. To interpret this equation, we must remember that current is the number of charges that go through a cross-section of a conductor per unit of time.

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