A glass rod rubbed with silk is brought close to two uncharged metallic spheres in contact with each other, inducing charge on them as shown in Figure (a) [given in the solution]. Discuss what happens when
(i) the shperes are slightly seprated
(ii) the glass rod is subvsequently removed, and finally
(iii) the spheres are separacted apart.

Figure shows that a positively charged rod is brought near two ucharged metal spheres A and B clamped on insulated stands and palced in contact with each other. (i) What would happen if the rod is removed before the spheres are separated? (ii) Would the induced charges be equal in magnitude even if the spheres had different sizes or different conductors? (iii) What will happen if the spheres are separated first and then the rod is removed far away?

Two identical conduction spheres, one having an initial charge +Q and the other initially uncharged, are brought into contact. (a) What is the new charge on each sphere? (b) While the spheres are in contact, a positively chaged rod is moved close to one sphere, causing a redistribution of hte charges on the two spheres so the charge on hte sphere closest to the rod has a charge-Q. What is the charge to the other sphere?

Two identical metallic spheres X and Y with electrons supported on insulating stands and placed in contact. What kind of charges will be daveioped on X and Y when a negatively charged ebonite rod is brought near X?

A metal sphere is suspended from a nylon thread. Initially, the metal sphere is uncharged. When a positively charged glass rod is brought close to the metal sphere, the sphere is drawn towards the rod. But if the sphere touches the rod, it suddenly flies away from the rod. Explain, why the sphere is first attracted then repelled?

What kind of charges are produced on the glass rod and the silk, when rubbed with each other.

Two metal spheres, one fo radius R and the other of radius 2R, both have same surface charge density s. They are brought in contact and seprated. What will be new surface charge densitites on them ?

Two metal spheres, one fo radius R and the other of radius 2R, both have same surface charge density s. They are brought in contact and seprated. What will be new surface charge densitites on them ?

Two equally charged, indentical metal spheres A and B repel each other with a force F" . The spheres are kept fixed with a distance r between them. A third identical, but uncharged sphere C is brought in contact with A and removed. The magnitude of the net electric force on A is

When a negative charged rod is brought near, but does not touch, the initially unchanged electroscope shown below, the leaves spring apart (I) . When the electroscope is then touched with a finger, the leaves collapse (II) . When next the finger and finally the rod are removed, the leaves spring apart a second time (III) . The charge on the leaves is

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 ?