pake cara y teman :)

| LISTRIK DINAMIS |
Gaya Coulomb
kls 9

Diket : Q1 = -3μC = 3.10^-6 C
Q2 = 1μC = 1.10^-6 C
r = 3 cm = 3.10^-2 m
Dit : Fc =.......?

Penyelesaian :

Fc = K.Q1.Q2 / (r)²
= 9.10^9.3.10^-6.1.10^-6 / (3.10^-2)²
= 9.3.1.10^9+(-6)+(-6) / 9.10^-4
= 27.10^-3 / 9.10^-4
= 3.10^-3+4
= 3.10^1
= 30 Newton (C)