Please jawab pakai caraaa.....

F = 8 x 10^12
Q1 = A = 8C
r = 30cm = 0,3m
Q2 = ?
k = 9 x 10^9

F = K Q1 Q2 / r²
Q2 = F r² / k . Q1
Q2 = (8 x 10^12) (0,3)² / (9 x 10^9) (8)
Q2 = 8 x 10^10 . 0,09 / 9 . 8. 10^9
Q2 = 0,72 x 10^10 / 72 x 10^9
Q2 = 0,01 x 10 = 0,1 C


Semoga membantu...
dari : th