Calculate the current strength of a wire passing through a copper wire 1m long

Calculate the current strength of a wire passing through a copper wire 1m long, with a cross-sectional area of 0.5mm2, if 6.8V electricity is applied to the ends.

Initial data: l (copper wire length) = 1 m; S (cross-sectional area of copper wire) = 0.5 mm ^ 2; U (voltage applied to the ends of the copper wire) = 6.8 V.

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

1) Determine the resistance of the copper wire: R = ρ * l / S = 0.017 * 1 / 0.5 = 0.034 Ohm.

2) Calculate the current in the copper wire: I = U / R = 6.8 / 0.034 = 200 A.

Answer: The current in the copper wire is 200 A.