Two point charges exert a force F on each other when they are placed r distance apart in air. When they are placed R distance apart in a medium of dielectric constant K ,they exert the same force. The distance R equals

Two charges exert a force of 10 N on each other when separated by a distance 0.2 m in air. When they are placed in another medium of dielectric constant K = 4 , and separated by distance R. they exert same force. The distance R equats to

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 :

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

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

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

Two identical metal spheres A and B have equal and similar charges. They repel each other with a force 103N, when they are placed 10cm apart in a medium of dielectric constant 7. Determine the charge on each sphere.