What is the electrical resistance of a copper conductor with a length of 50 m

What is the electrical resistance of a copper conductor with a length of 50 m and a cross-sectional area of 1 mm2 if the resistivity of copper is 1.7 * 10-2 ohm?

Task data: l (length of a given copper conductor) = 50 m; S (cross-sectional area) = 1 mm2.

Reference values: according to the condition ρ (specific electrical resistance of copper) = 1.7 * 10-2 Ohm * mm2 / m.

The electrical resistance of a given copper conductor is determined by the formula: R = ρ * l / S.

Let’s calculate: R = 1.7 * 10-2 * 50/1 = 0.85 Ohm.

Answer: A given copper conductor has a resistance of 0.85 ohms.