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

Two charges are placed a certain distance apart in air. If a brass plate is introduced between them, the force between them will

Force between two point charges in air at certain distance is 200N. What will force when they are kept in a medium of dielectric constant 4, at the same distance?

Force between two point charges in air at certain distance is 200N . What will force when they are kept in a medium of dielectric constant 4 , at the same distance?

Two point charges placed at a certain distance r in air exert a force F on each other. Then the distance r at which these charges will exert the same force in a medium of dielectric constnat K is given by

The ratio of the force between two small conducting spheres of equal charge in (a) a medium of dielectric constant 2, and (b) air is respectively

Two point charges placed at a distance r in air experience a certain force. Then the distance at which they will experience the same force in a medium of dielectric constant K is

Two point charges placed at a distance r in air exert a force f on each other. The value of distance R at which they experience force 4F when placed in a medium of dielectric constant K = 16 is :