Coulomb's Law Calculator
Calculate the attractive or repulsive electrostatic force between two electric charges using Coulomb's law. Enter charge magnitudes in Coulombs and distance in meters to find force in Newtons. Essential for physics students studying electrostatics and electric fields.
Coulomb Law
F = k × |q₁ × q₂| / r²Variables:
- FCoulomb force (N)Coulomb force (N)
- kCoulomb's constant (8.988×10⁹ Nm²/C²)Coulomb's constant (8.988×10⁹ Nm²/C²)
- q₁, q₂Electric charge (C)Electric charge (C)
- rDistance between charges (m)Distance between charges (m)
How to Use
- 1
Input Muatan 1
Enter muatan pertama (C).
- 2
Input Muatan 2
Enter muatan kedua (C).
- 3
Input Jarak
Enter jarak antar muatan (m).
- 4
Calculate
Dapatkan gaya and jenisnya (tarik/tolak).
Examples
Dua Muatan Sama
Problem:
q₁=2μC, q₂=3μC, r=0.5m. Cari F?
Solution:
- 1.F = 8.988e9 × |2e-6 × 3e-6| / 0.5²
- 2.F = 0.216 N
Result:F = 0.216 N (Tolak-menolak)
Karena muatan sebangun, terjadi gaya tolak-menolak sebesar 0.216 N.
Frequently Asked Questions
Kenapa nilai mutlak?
Gaya tarik/tolak ditentukan oleh tanda, magnitudo selalu positif.
What is k?
Konstanta Coulomb = 1/(4πε₀) ≈ 8.988×10⁹ Nm²/C².