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Coulomb's Law Calculator

Calculate the electrostatic force between two charged particles using Coulomb's Law. The formula F = kq₁q₂/r² gives the force magnitude, where k is Coulomb's constant, q₁ and q₂ are the charges, and r is the distance between them.

Inputs

Results

Force

8.987e-1 N

Direction

Repulsive

E-field (q₁)

8.987e+5 N/C

Coulomb's Law Results

ParameterValue
Charge q₁1 μC (1.0000e-6 C)
Charge q₂1 μC (1.0000e-6 C)
Distance0.1 m (10.00 cm)
Force8.9875e-1 N
Force (absolute)8.9875e-1 N
DirectionRepulsive (like charges)
E-field from q₁8.9875e+5 N/C
E-field from q₂8.9875e+5 N/C
FormulaF = kq₁q₂/r²

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