The relationship between two charges and the electrical force they are experiencing is described using the Coulomb’s law. The Coulomb's law states that: “The degree of the electrostatic force of attraction between 2 point charges is directly proportional to the product of the magnitudes of the 2 charges and inversely proportional to the square of the distance between them.” Where the force is along the straight line joining them. Therefore this is expressed mathematically as:
F = k q1 q2 / d^2
This also means that the electrical force experienced by 2 charges is equal. Therefore if charge Q experiences an electrical force of F, therefore the electrical force on 3Q is also F.
Answer:
F
