A cable with copper conductors with a total cross-section of 100 mm2 is connected
| March 3, 2021 | education
A cable with copper conductors with a total cross-section of 100 mm2 is connected to the house. The cable length is 80 m. Determine its resistance.
Initial data: l (cable length with copper conductors) = 80 m; S (total cross-section of copper conductors of the cable) = 100 mm ^ 2.
Reference data: ρ (resistivity of copper) = 0.017 Ohm * mm ^ 2 / m.
The cable resistance is determined by the following formula: R = ρ * l / S.
Let’s perform the calculation: R = 0.017 * 80/100 = 0.0136 Ohm or 13.6 mOhm.
Answer: The resistance of the cable is 13.6 mΩ.
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