The electrostatic force acting on a charge q lying at a distance of 2cm on axial position from the centre of a dipole is 64 N, now if this distance is made double then find the new value of force. Assume that separation between two charges of the dipole is less than 4cm

If the force exerted by an electric dipole on a charge q at distance of 1 m is F, the force at a point 2 m away in the same direction will be

The force between two charges 4C and -2C which are separated by a distance of 3km is

Two charges of equal magnitudes and at a distance r exert a force F on each other. If the charges are halved and distance between them is doubled, then the new force acting on each charge is

A small electric dipole is kept on the axis of a uniformly charged ring at distance R // sqrt(2) from the centre of the ring. The direction of the dipole moment is along the axis. The dipole moment is P, charge of the ring is Q and radius of the ring is R. The force on the dipole is nearly _____

Two point charges separated by a distance d repel each other with a force of 9N. If the separation between them becomes 3d, the force of repulsion will be

A point charge q is situated at a distance r from one end of a thin conduction rod of length L having a charge Q (uniformly distributed a long its length).find the magnitudes of electric force between the two.

A given charge is situated at a certain distance from an electric dipole in the end-on position experiences a force F If the distance of the charge is doubled, the force acting on the charge will be

An electric dipole is kept on the axis of a uniformly charged ring at distance from the centre of the ring. The direction of the dipole moment is along the axis. The dipole moment is p , charge of the ring is Q & radius of the ring is R . The force on the dipole is

The force on a charge situated on the axis of a small dipole is F .If the charge is shifted to double the distance the force acting will be (f)/(x) .What is x ?