Coulomb’s law calculator

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Result

Force13.48 N

Typeattractive

Step-by-step solution

Coulomb’s law

F = k·|q₁q₂|/r² = 8.99 × 10⁹·15 × 10⁻¹²/0.1² = 13.48 N

Key formulas

Coulomb’s law: F = k·|q₁q₂|/r²
Field of a point charge: E = k·|q|/r²
Constant: k = 8.99 × 10⁹ N·m²/C²
Force on a charge: F = q·E

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