R = ρl/A
Where R = Resistance in Ohms, Ω, ρ = Resistivity in Ωm, l = Length in m.
Area in m²
ρ = Resistivity = 3.14 * 10⁻⁸ Ωm, Length l = 12m,
Area = πr² = π* (2*10⁻⁴)² m² ≈ 3.14 * (2*10⁻⁴)² m²
R = ρl/A
≈ 3.14 * 10⁻⁸ * 12 / (3.14 * (2*10⁻⁴)²)
≈ 3
Resistance, R ≈ 3 Ω
