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Q1 = 1x10⁻⁹ C
Q2 = 2x10⁻⁹ C
r = 0,3 m
k = 9x10⁹ Nm²/C²
ditanyakn : F ?
dijawab :
F = k Q1Q2/r²
= 9x10⁹ x1x10⁻⁹x2x10⁻⁹ / (0,3)²
= 9x10⁹ x 2x10⁻¹⁸ /9x10⁻²
= 2x10⁻⁷ N