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# Calculate Resistivity

Simple calculator for the resistivity (line resistance) and the line conductance of a cable. To calculate the resistivity and line conductance, you need the length and cross-section (or diameter in the case of a round cross-section) of the conductor and the specific conductance or specific resistance of the material. Please enter one value each for three of these four value categories to calculate the fourth value.

The formulas are :

R = ρ * l / A

A = π * d² / 4

σ = 1 / ρ

G = 1 / R

Units: Ω = ohm, S = siemens

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