Tentukan besarnya gaya listrik antara dua muatan +3C dan -4C pada jarak 2 cm! (k = 9 x 109 Nm2/C2)
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q₁ = + 3 C
q₂ = - 4 C
r = 2 cm = 0,02 m
k = 9 × 10⁹ Nm²/C²
Ditanyakan: F
Jawab:
F =
=
=
= 27 × 10¹³ N
Jadi, besarnya gaya listrik adalah 27 × 10¹³ Newton.