Tolong dibantu soal fisika no 4

LISTRIK DINAMIS
• Hambatan penghantar

L = 0,5 m
R = 0,045 ohm
A = 2 mm² = 2×10⁻⁶ m²
ρ = __?

hambat jenis
R = ρ L / A
ρ = R A / L
ρ = 0,045 • 2×10⁻⁶ / 0,5
ρ = 0,09×10⁻⁶ / 0,5
ρ = 0,18×10⁻⁶
ρ = 1,8×10⁻⁷ ohm m ← jwb