Two electrons are suspended in a field and are 2.0 cm away from each other. How much would the electric force between two electron charges change if the distance between them is increased to 5.0cm?
2 answers
The electric force between two electron charges is inversely proportional to the square of the distance between them. Therefore, if the distance between the two electrons is increased from 2.0 cm to 5.0 cm, the electric force between them will decrease by a factor of (5.0/2.0)^2 = 2.25.
Math.