1
When two charged objects immersed in a dielectric liquid then the number of forces along with electrostatic force will come in picture. Let's practice this question.
Two charged balls of the same radius and weight suspended on threads of equal length are immersed into a liquid having density of and a dielectric constant . The density of the material of the balls for the angles of divergence of the threads in the air and in the dielectric to be the same is: