Two conducting sphere of radius R are placed at a large distance from each other. They are connected by a coil of inductance L, as shown in the figure. Neglect the resis- tance of the coil. The sphere A is given a charge Q and the switch ‘S’ is closed at time `t = 0`. Find charge on sphere B as a function of time. At what time charge on B is `(Q)/(2)` ?

Two metal spheres of same radius R are placed at a very large distance from each other, and they are connected by a coil of inductance L, as it is shown in the figure. One of the spheres is loaded with electric charge. At what time, after closing the switch S. does the charge on this sphere decreases to half ?

Two metal spheres of same radius R are placed at a very large distance from each other, and they are connected by a coil of inductance L, as it is shown in the figure. One of the spheres is loaded with electric charge. At what time, after closing the switch S. does the charge on this sphere decreases to half ?

Two fixed identical metallic spheres A and B of radius R=50cm each are placed on a non-conducting plane at a very large distance from each other and they are connected by a coil of inductance L=9mH as shown in figure. One of the spheres (say A) is imparted an initial charge and the other is kept uncharged. The switch S is closed at t=0 . After what minimum time t does the charge on the first sphere decrease to half of its initial value ?

A point charge q is placed at some distance d away from the centre of a grounded conducting sphere of radius r, as shown in the figure. The charge that flows the earth to the sphere is

A point charge q is placed at some distance d away from the centre of a grounded conducting sphere of radius r, as shown in the figure. The charge that flows the earth to the sphere 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?

The centre of neutral conducting sphere of radius "R" is at distance 'd' from a point charge "Q" .The potential of the sphere is

A solid conducting sphere of radius r is having a charge of Q and point charge q is a distance d from the centre of sphere as shown. The electric potential at the centre of the solid sphere is :