Two solid conducting spheres of radii `R_(1)` and `R_(2)` are kept at a distance `d (gt gt R_(1) and R_(2))` apart. The two spheres are connected by thin conducting wires to the positive and negative terminals of a battery of emf V. Find the electrostatic force between the two spheres

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_(1) and r_(2) are equally charged. The ratio of their potentral is-

Two Cu wires of radii R_(1) and R_(2) are such that (R_(1) gt R_(2)) . Then which of the following is true ?

two metal spheres of radii R_(1) and R_(2) are charged to the same potential. The ratio of charges on the spheres is

Two conducting spheres of radii r_(1) and r_(2) are charged to the same surface charge density . The ratio of electric field near their surface 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?

A conducting ball of radius r is charged to a potential V_0 . It is enveloped by a thin walled conducting sphere of radius R (gt r) and the two spheres are connected by a conducting wire. Find the potential of the outer sphere.

The capacitance of two concentric spherical shells of radii R_(1) and R_(2) (R_(2) gt R_(1)) is

A charge Q is kept at the centre of a conducting sphere of inner radius R_(1) and outer radius R_(2) . A point charge q is kept at a distance r(gt R_(2)) from the centre. If q experiences an electrostatic force 10 N then assuming that no other charges are present, electrostatic force experienced by Q will be :