Determine the specific resistance of the conductor if its length is 2.4 m, the cross-sectional area is 0.4

Determine the specific resistance of the conductor if its length is 2.4 m, the cross-sectional area is 0.4 mm2 and the resistance is 1.2 Ohm

Given:

L = 2.4 meters – conductor length;

s = 0.4 square millimeters is the cross-sectional area of the conductor;

R = 1.2 Ohm is the total resistance of the conductor.

It is required to determine k (Ohm * mm2 / m) – the specific resistance of the conductor.

To determine the resistivity of a conductor, you must use the following formula:

R = k * L / s, from here we find:

k = R * s / L = 1.2 * 0.4 / 2.4 = 0.48 / 2.4 = 0.2 Ohm * mm2 / m.

Answer: the resistivity of the conductor is 0.2 Ohm * mm2 / m.