Materials science: Relate resistivity and conductivity with a simple formula. Given the resistivity (ρ) of a material and its conductivity (σ), what is the correct mathematical relationship between these two properties? Choose the correct relation.
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Technology
Difficulty: Easy
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Answer
Correct Answer: σ = 1 / ρ
Explanation
GivenMaterial properties: resistivity (ρ) and conductivity (σ).
Concept/ApproachBy definition, conductivity is the reciprocal of resistivity for homogeneous isotropic materials.
Formulaσ = 1 / ρ
Final Answerσ = 1 / ρ.