Bab 4 Muatan Listrik

# Bab 4 Muatan Listrik - MUATAN LISTRIK Satuan muatan listrik...

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Satuan muatan listrik Q [Coulomb] HUKUM COULOMB : q 1 q 2 R R a ˆ R 2 2 1 21 a ˆ R q kq F 12 R k=9x10 9 21 21 R 21 R R a R R 21 3 21 2 1 21 21 2 21 2 1 21 R R q kq R R R q kq F MUATAN LISTRIK

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Contoh Soal 4.1 Dua buah bola konduktor akan tarik menarik dengan gaya sebesar 0,108 N ketika dipisahkan pada jarak 50 cm. Kemudian kedua bola ini dihubungkan dengan sebuah kawat konduktor sehingga terjadi kesetimbangan muatan. Setelah kawat konduktor tersebut dilepaskan ternyata kedua bola tadi akan tolak menolak dengan gaya sebesar 0,036 N. Berapa besarnya muatan dari kedua bola tersebut mula-mula ? 0,5 m Q 1 Q 2 F 12 F 21 Jawab : 3 10 x 9 ) 25 , 0 ( 108 , 0 Q Q 108 , 0 5 , 0 10 x Q 10 x Q 10 x 9 F 3 2 1 2 6 2 6 1 9
0,5 m Q Q F 12 F 21 2 Q Q 1 10 x 9 ) 25 , 0 ( 036 , 0 2 Q Q Q 036 , 0 5 , 0 10 Qx 10 Qx 10 x 9 F 2 Q Q Q 2 1 3 2 2 1 2 2 6 6 9 2 1 C 1 Q C 3 Q 2 Q Q 3 Q Q 2 1 2 1 2 1

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Contoh Soal 4.2 Dua buah muatan yang dipegang tetap yang masing-masing besarnya adalah + 1 C dan - 3
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