Diketahui :
k = 9 × 10⁹ Nm²/C²
q1 = 6 × 10 C
q2 = 7 × 10 C
r = 30 cm = 0,3 m
Ditanya :
F = ...?
Jawab :
F = k × q1 × q2 ÷ r²
= 9 × 10⁹ × 6 × 10 × 7 × 10 ÷ (0,3)²
= 9 × 10⁹ × 6 × 10 × 7 × 10 ÷ 0,09
= 42 × 10¹³
Catatan :
nilai k selalu bernilai 9 × 10⁹ Nm²/c²
Semoga membantu ya ^_^