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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > 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 velocity which the bead should projected from the point P so that it can complete a circle should be greater than .

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 velocity which the bead should projected from the point P so that it can complete a circle should be greater than .

0) to point B (10a 0). If the initial electrostatic potential energy is U0 2a 2a) along a circle and then to point C(10a 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 what will be final electrostatic potential energy?