Coulomb's Law Calculator
Computes the electrostatic force between two point charges, whether it is attraction or repulsion, the field and the potential energy.
Read the full guide to this tool
Results
Notes
- F = k·q₁q₂/r² with k ≈ 8.99×10⁹ N·m²/C². Like charges repel, opposite charges attract.
- The inverse-square distance law means moving twice as far apart cuts the force to a quarter.
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