Force Between Two 1 µC Charges 10 cm Apart
Two 1 µC charges separated by 10 cm repel each other with a force of approximately 0.899 N.
How to use this tool
- Enter charge q₁, charge q₂ and separation r in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your electrostatic force and the full breakdown beneath it.
This is a classic textbook example: two equal 1 µC point charges 10 cm apart experience a repulsive force of about 0.9 N.
Frequently asked questions
- What is Coulomb's constant k?
- k = 1/(4πε₀) ≈ 8.9875×10⁹ N·m²/C², where ε₀ is the permittivity of free space. It appears in all electrostatic force calculations.
- What is a typical charge magnitude?
- 1 μC (1×10⁻⁶ C) is typical in electrostatics experiments. An electron carries 1.602×10⁻¹⁹ C.