Diketahui Q1=2mc, r=3dm, Fc=6N. Berapa Q2=. . . . ?

Q1 = 2 mC = 2 x 10⁻³ C
r = 3 dm = 0,3 m = 3x10⁻¹ m
Fc = 6 N
k = 9 x 10⁹ N m² C⁻¹
Q2= __?

Fc = k Q1 Q2/r²
6 = 9 x 10⁹ (2 x 10⁻³)Q2/(3x10⁻¹)
6 = 6 x 10⁷ Q2
Q2 = 6/(6 x 10⁷)
Q2 = 10⁻⁷ C = 0,1 μC