What is the height of a copper wire with a cross-cut area of 0.1 mm2 if, at a voltage of 1.7 V

What is the height of a copper wire with a cross-cut area of 0.1 mm2 if, at a voltage of 1.7 V, the current through it is equal to 1 A.

Initial data: S (cross-sectional area of a copper wire) = 0.1 mm ^ 2; U (voltage at the ends of the copper wire) = 1.7 V; I (current on copper wire) = 1 A.

Constants: ρ (resistivity of copper) = 0.017 Ohm * mm ^ 2 / m.

1) Determine the resistance of the copper wire: R = U / I = 1.7 / 1 = 1.7 Ohm.

2) Calculate the length of the copper wire: R = ρ * l / S, whence l = R * S / ρ = 1.7 * 0.1 / 0.017 = 10 m.

Answer: The length of the copper wire is 10 meters.