If two point charges exert a force of 1 N on each other when they are 3 cm apart,they will exert a force of 1/25 N when they are 15 cm apart.

Question

Quizplus · Accepted Answer

According to Coulomb's Law, the force between two point charges is inversely proportional to the square of the distance between them. If the distance increases from 3 cm to 15 cm (5 times), the force decreases by a factor of 5^2 = 25, resulting in 1/25 N.

If Two Point Charges Exert a Force of 1 N