Conductor Resistance at Temperature

Resistance of copper or aluminum at temperature.

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Formula and source

R(T) = R(20°C) × (1 + α × (T − 20°C)); α copper = 3.93 × 10⁻³ /K; α aluminum = 4.03 × 10⁻³ /K.

CRC Handbook material properties; NIST temperature-coefficient values.

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