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( 0.1 m)^
-108 × 10 pngkt min3
------------------- :
1 × 10 pngkt min 2
-108 × 10 pngkt min 1 = -10,8 newton
yg B jg gtu crny.
qB = -4μC = -4x10^-6 C
R1 = 10cm =0,1 m
R2 = 40cm = 0,4 m
F1=?
F2=?
F1 = k qA qB 1/R1²
F1 = 9x10⁹ 3x10⁻⁶ 4x10⁻⁶ x 1/10⁻²
F1 = 10,8 N
F2 = k qA qB 1/R2²
F2 = 9x10⁹ 3x10⁻⁶ 4x10⁻⁶ x 1/16x10⁻²
F2 = 0,675 N