gaya coulomb soal no 4

F = k × Q1 × Q2/r^2
F = 9 × 10^9 × 4 × 10^-6 × 9 × 10^-6/(2 × 10^-2)^2
F = 324 × 10^-3/4 × 10^-4
F = 81 × 10
F = 810 N

maaf kalo salah ...,......................................................................