If the distance between two equal point charges is doubled and their individual charges are also doubled, what would happen to the force between them?

Explanation

`F=1/(4pi epsilon_(0))(qxq)/r^(2)` …(i) Again, `F'=1/(4pi epsilon_(0))((2q)(2q))/((2r)^(2))` or `F'=1/(4pi epsilon_(0))(4q^(2))/(4r^(2))=1/(4pi epsilon_(0)) q^(2)/r^(2)=F`
So, the force will remain the same.