Gaya coulomb
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Pertemuan 7 – Listrik Statis 1. Gaya Coulomb (Gaya Listrik) Ada 2 jenis muatan listrik, yaitu muatan positif dan muatan negatif. Muatan listrik dapat saling berinteraksi satu sama lain. Interaksi antar muatan listrik dapat berupa tarikan atau dorongan satu sama lain yang disebut sebagai gaya Coulomb atau gaya elektrostatik. Antara 2 muatan sejenis dapat menghasilkan gaya tolakan satu sama lain. Sedangkan antar muatan berbeda jenis menghasilkan gaya tolakan satu sama lain. Berdasarkan Hukum Coulomb, besar gaya interaksi antar dua muatan memiliki besar yang sama pada masing-masing muatan (F12=F21). Besar gaya Coulomb tersebut dipengaruhi suatu konstanta, yang dipengaruhi oleh permitivitas medium (ε). Besar gaya Coulomb antara dua muatan listrik dapat ditentukan dengan persamaan berikut ini. 𝑭=𝒌 𝒒𝟏 𝒒𝟐 𝒓𝟐 Dengan besarnya k = 9 x 109 Nm2/C2. Nilai k diperoleh dari : 𝒌= 𝟏 𝟒𝝅𝜺 Keterangan : F = gaya Coulomb (N) k = konstanta elektrostatis (9 x 109 Nm2/C2) q1 = muatan listrik 1 (C)
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Coulomb's Law Calculator
This electric coerce calculator will enable you to determine the repulsive or attractive force between two static charged particles. Continue reading to earn a better understanding of Coulomb's law, the conditions of its validity, and the physical interpretation of the obtained result.
How to use Coulomb's law
Coulomb's commandment, otherwise known as Coulomb's inverse-square law, describes the electrostatic force acting between two charges. The pressure acts along the shortest line that joins the charges. It is repulsive if both charges contain the same sign and attractive if they possess opposite signs.
Coulomb's law is formulated as follows:
F=r2keq1q2
where:
- F is the electrostatic force between charges (in Newtons),
- q1 is the magnitude of the first charge (in Coulombs),
- q2 is the magnitude of the second charge (in Coulombs),
- r is the shortest distance between the charges (in m),
- ke is the Coulomb's constant. It is equal to 8.98755⋅109 C2N⋅m2. This value is already embedded in the calculator - you don't have to remember it :)
Simply input any three values into our electric force calculator to obtain the fourth as a result.
Cara Menghitung Gaya Coulomb pada Dua Muatan Listrik
KOMPAS.com - Gaya Coulomb adalah gaya tarik-menarik antara dua muatan listrik, q1 dan q2, yang berlawanan jenis.
Selain itu, Gaya Coulomb juga berarti gaya toal-enolak antara dua muatan listrik, q1 dan q2, yang sejenis adalah sebanding dengan hasil perkalian kedua muatan dan berbanding terbalik dengan kuadrat jarak antara kedua muatan tersebut.
Rumus Hukum Coulomb, yakni:
Baca juga: Gaya Coulomb: Pengertian dan Rumusnya
Contoh soal 1
Dua muatan masing sebesar dan jika kedua muatan terpisah pada jarak sejauh 2mm. Hitunglah besar gaya Coulomb jika hanya k sama dengan 9x10?Nm²/c²!
Jawab:
Diketahui:
Ditanya:
F = ...?
Pembahasan:
Baca juga: Contoh Soal Gaya Coulomb dan Kuat Medan Listrik
Contoh soal 2
Dua Benda Bermuatan Listrik masing-masing 20 Coloumb dan 50 Coloumb berada pada jarak 2 meter. Tentukan Gaya Coloumbnya!
Jawab:
Diketahui:
Ditanya:
F = ....?
Pembahasan:
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