Two conducting spheres of radii r and 3r initially have charges 3q & q respectively. Their separation is much larger their radii. If they are joined by a conductor of high resistance, the force between them will :

Two concentric conducting shells of radii R and 2R are having charges Q and -2Q respectively.In a region r

Two conducting spheres of radii r_(1) and r_(2) having charges Q_(1) and Q_(2) respectively are connected to each other. There is

Two conducting spheres of radii r and 2r are placed at very large separation. Each sphere possesses charge Q. These spheres are connected with a conducting wire of resistance R. Then, which of the following is true?

Two conducting spheres of radii r and 2r are placed at very large separation. Each sphere possesses charge Q. These spheres are connected with a conducting wire of resistance R. Then, which of the following is true?

Two spheres of radii r and 2r have charges 2q and q on them, respectively. If they are connected by a copper wire, what will be the amount of charge flowing through the wire?

Two identical conducting balls having positive charges q_1 and q_2 are separated by a center to center distance r. If they are made to touch each other and then separated to the same distance, the force between them will be.

The spheres of radius r and R having charge q and Q respectively on them . When they are joined with conducting ,wire, the energy of this system does not dissipated then ...........

Two concentric spherical conducting shells of radii r and R (r lt R ) carry charges q and Q respectively . The two shells are now connected by a conducting wire. The final charge on the inner shell is