The ratio of the forces between two charges placed at a certain distance apart in air and at half of the distance a part in medium of dielectric 'k' is А) k B) k/3 C) k/2 D) K/4

The ratio of the forces between two charges placed at a certain distance apart in air at half of the distance apart in medium of dielectric .k. is

The ratio of the force between two charges in vacuum at a certain distance apart to that between the same charges, the same distance apart in a medium of permittivity e is:

The ratio of the force between two charges in air and that in a medium of dielectric constant K is

The ratio of the forces between two small spheres with constant charge 'a' in air and 'b' in a medium of dieletric constant k is

The electrostatic force between two charges distance r apart in vaccum is F. The force between the same charges distance r/2 apart in a medium of dielectric constant 2 is

The ratio of the force between two small spheres (with constant charges) F_(1) in air and F_(2) in a medium of dielectric constant k is respectively..

The force of attraction between two point charges placed at a distance 'd' apart in a medium is F. what should be the distance apart in the same medium so that the force of attraction between them becomes F/4 ?