Dua buah muatan titik masing-masing +4 µC dan -10 µC terpisah 5 cm satu sama lain. Besar gaya Tarik menarik kedua muatan tersebut adalah…N
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Q1 = 4μC = 4 × 10^-6 C
Q2 = 10μC = 10 × 10^-6 C
r = 5 cm = 5 × 10^-2 m
[tex]f = k \frac{q1q2}{ {r}^{2} } [/tex]
[tex]f = (9 \times {10}^{9} ) \frac{(4 \times {10}^{ - 6})(10 \times {10}^{ - 6}) }{ ({5 \times {10}^{ - 2} })^{2} } [/tex]
[tex]f = (9 \times {10}^{9}) \frac{(40 \times {10}^{ - 12}) }{(25 \times {10}^{ - 4}) } [/tex]
[tex]f = (9 \times {10}^{9})(1.6 \times {10}^{ - 8}) [/tex]
[tex]f = 14.4 \times {10}^{ 1} newton[/tex]
[tex]f = 1.44 \times {10}^{ - 1} newton[/tex]
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