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Wire Resistance CalculatorWire resistance calculator allows you to quickly determine the electrical resistance of a specific wire. The resistance of a wire depends on its material and geometrical dimensions (length and diameter or cross-sectional area).
This tool uses the following resistance formula: R = ρ × L / A where:
R – Resistance in Ω; If you know the diameter (D) of the wire its cross-sectional area (A) will be calculated as: A = π / 4 × D² This calculator allows to use American Wire Gauge to determine cross-sectional area of the wire. |
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