Coulomb's Constant Formula

📊 intermediate

$$k_e = \frac{1}{4\pi\epsilon_0}$$

Relates the SI units of charge to the electrostatic force.

Variables & Units

$\epsilon_0$

Vacuum permittivity

Unit: $C^2/(N \cdot m^2)$

Key Information

📐 Derived From

Definition of SI units for electromagnetism.

💡 Example

Used to convert charge/distance into Force in Newtons.

🔧 Applications

All electrostatic force and field equations.

⚠️ Constraints

Applies to vacuum.

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