Two very long parallel horizontal conductors of radius 𝑎 reside on the flat surface of the earth, pressed into the earth

[answerhappygod]

Two very long parallel horizontal conductors of radius 𝑎 resideon the flat surface of the earth, pressed into the earth forexactly 𝑎. The conductivity of the earth is 𝜎, and the distancebetween the axes of the conductors is 𝑑 (𝑑≫𝑎). Determine theresistance between the conductors per unit length.