what will be final electrostatic potential energy?

A positive charge + q1 is located to the left of a negative charge -q2. On a line passing through the two charges , there are two places where the total potential is zero . The refrence is assumed to be at infinity . The first place is between the charges and is 4 cm [...]

The diagram show a small bead of mass m carrying charge q. The bead can freely move on the smooth fixed ring placed on a smooth horizontal plane . In the same pane a charge +Q has also been fixed as shown. The potential at the point P due to +Q is V . The [...]

A conducting sphere of radius R and a concentric thick spherical shell of inner radius 2R and outer radius 3R is shown in figure. A charge +10 Q is given to the shell and inner sphere is earthed. Then charge on inner sphere is 0) to point B (10a 0). If the initial electrostatic potential [...]

A nonuniformly charged ring is kept near an uncharged conducting solid sphere. The distance between their centres (which are on the same line normal to the plane of the ring) is 3m and their radius is 4m. If total charge on the ring is 1μC, then the potential of the sphere will be 0) to [...]

A plane sheet has a uniformly distributed charge. Origin is selected at the middle of the sheet (in yz plane). A charge +Q is moved from point A (10a, 2a,0) to point B (10a,0,2a) along a circle and then to point C(10a, 0, 0). If the initial electrostatic potential energy is U0, what will be [...]