Coulomb's Law: The distance between two charged spheres

[Valenciamar]

Homework Statement

“If the distance between two charged spheres decreases, then the force on the sphere _______, because____.”

Relevant Equations

Fe= q1q2/ r^2

The force of the sphere increases because according to Coulomb's force increases as the distance decreases.

I'm not sure if this is correct.

 

[kuruman]

The force of the sphere increases because according to Coulomb's force increases as the distance decreases.

I'm not sure if this is correct.

Can you verify your conclusion? Suppose the distance were reduced to half its original value. By what factor would the force change?