Question

When the distance between two charged objects is doubled, the force between them

Answer 1

As per Columbo's law force is inversely proportional to square of distance between two charges.

`(F)/(F_(new)) =(r_(new)^(2) )/(r^(2) )`

`(F)/(F_(new)) =((2r)^(2) )/(r^(2) ) \\`

`F = 4 F_(new)`

therefore the new force if 1/4 times the old one