If the distance between a point charge and a neutral atom and is multiplied by a factor of 5, by what factor does the force on the neutral atom by the point charge change

Given :

The distance between a point charge and a neutral atom and is multiplied by a factor of 5.

To Find :

By what factor does the force on the neutral atom by the point charge change.

Solution :

We know, electrostatic force between two object is directly proportional to product of charge and inversely proportional to distance between them.

Now, charge in neutral atom is 0 C.

So, the electrostatic force between two of them is also 0 N.

Therefore, by changing distance between the charge the forces did no change ( it remains zero).

- lead + phosphoric acid = hydrogen + lead(ii) phosphate