Fisika kelas 10 SMA. JAWAB YA NO. 3 JANGAN ASAL! PAKAI CARA YA KALO BISA!

LISTRIK DINAMIS
• hambatan

ρ = 3,14×10^-5 ohm m
L = 40 m
r = ½ d = 2 mm = 2×10^-3 m
R = __?

luas penampang
A = π r²

Hambatan
R = ρ L / A
R = ρ L / (π r²)
R = 3,14×10^-5 • 40 / (3,14 • (2×10^-3)²)
R = 100 ohm ← jwb