top of page

Electrostatics & Coulomb's Law

Practice Problem

Two point charges, q1 = +3.0 uC and q2 = -5.0 uC, are placed 0.15 m apart in a vacuum.

  1. Calculate the magnitude of the electrostatic force between the two charges using Coulomb's Law (ke = 8.99 x 10^9 N*m^2/C^2).

  2. Is the force attractive or repulsive?

bottom of page