1. The problem statement, all variables and given/known data The magnitude of electrical force between a pair of charged particles is _____ as much when the particles are moved half as far apart. 2. Relevant equations 3. The attempt at a solution I understand that Coulomb's Law is. F = k q1 q2 / d^2 So is the answer just putting in the distance which is 1/2 and squaring it? So is it just 1/2^2?