# Determine the voltage at the ends of the conductor, the specific resistance of which is 0.4 ohm * mm2 / m

October 11, 2021 | education

| **Determine the voltage at the ends of the conductor, the specific resistance of which is 0.4 ohm * mm2 / m, if its length is 6 m, the cross section is 0.08 mm2, and the current strength in it is 0.6 A**

Given: ρ (electrical resistivity of the conductor) = 0.4 Ohm * mm2 / m (the conductor was made of nickel); l (conductor length) = 6 m; S (cross-sectional area value) = 0.08 mm2; I (current in the conductor) = 0.6 A.

1) Calculate the resistance of the conductor: R = ρ * l / S = 0.4 * 6 / 0.08 = 30 Ohm.

2) Determine the desired voltage at the ends of the conductor: U = I * R = 0.6 * 30 = 18 V.

Answer: The voltage is 18 V.