Electricity & Magnetism
Intermediate

Coulomb's Law

Force between two point charges.

Formula

F=kq1q2r2F = k\frac{q_1 q_2}{r^2}

Variables

kCoulomb constant
qCharges
rDistance

Did You Know?

The electric force between two protons is about 10³⁶ times stronger than the gravity between them.

coulombchargeforce