tolong ya dijawab, dikumpulin besok

ρ = 2 x 10⁻⁸ ohm meter
l = 2 m
d = 1 mm = 1 x 10⁻³ m

R = _ ?
A = ¼ π d²
= ¼ x 3,14 x (1 x 10⁻³)²
= 0,785 x 10⁻⁶ m²

R = ρ l / A
= 2 x 10⁻⁸ x 2 / 0,785 x 10⁻⁶
≈ 5, 1 x 10⁻² ohm