Last updated: March 2, 2026 by James Wilson

Electric Field Strength Calculator

Formula

E = kQ/r² and V = kQ/r, where k = 8.99×10⁹ N·m²/C².

Calculate the electric field and potential from a point charge using Coulomb's law constant k = 8.99×10⁹ N·m²/C². Essential for electrostatics problems.

Common use cases:

  • Electrostatics homework
  • Capacitor design
  • Particle physics experiments

Frequently Asked Questions

JW

James Wilson

Licensed Professional Engineer, PE, MS Civil Engineering

James is a Licensed Professional Engineer with a Master's in Civil Engineering and over 12 years of experience in structural design and construction project management. He specializes in building calculations, material estimation, and physics-based engineering tools.

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