QUIZ 04

Two identical metal spheres K and L, connected with an insulated rope, have electrical charges of 3q and q respectively and are in electrical fields of each other. With a horizontal force F applied to L as shown in the figure, the tension in the rope is found to be T=2F.
The total charge being conserved, If K is touched to L and the force F is applied in the same manner, what will be the new value of the tension in terms of F?
(Assume that the horizontal plane is insulated, mass of rope and frictions are negligible.)