how does the magnitude of electrical force between a pair of charged particles change when the particles are moved twice as far apart?

By the inverse-square law, the force reduces to one-quarter when the particles are twice as far apart and to one-ninth when three times as far apart.The electric force between two bodies is directly proportional to the net charge on each body and inversely proportional to the square of the distance between the bodies. Careful observation reveals that the electrostatic force between two point charges varies inversely with the square of the separation distance between the two charges.So the factor by which the electrostatic force changes is the reciprocal of the square of the factor by which the separation distance changes. A potential difference, also called voltage, is the external work required to move a charge from one place to another within an electric field. The magnitude of the electric force exerted by one particle on another is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.Learn more about The electric force here:-https://brainly.com/question/25923373#SPJ4