Two pith balls having charge `3_(q)` and `2_(q)` are placed at distance of a from each other. For what value of charge transferred from `1 ^(st)` ball to `2^(nd)` ball, force between balls becomes maximum?

Two charges Q and q are placed at a distance ‘d’ from each other. If the magnitude of each charge is doubled and the distance between them halved, the force becomes?

Two sphere M and N, having charge q_(1) and q_(2) are kept at some distance from each other.q amount of charge is taken from the sphere M and transferred ot the sphere N. What is the new charge of the two spheres so that the force acting between them becomes maximum?

Two identical conducting balls having positive charges q_(1) and q_(2) are separated by a center to center distance r. If any are made to touch each other and then separated to the same distance the force between them will be ……… .

Two point charges A and B, having charges +Q and -Q respectively, are placed at certain distance apart and force acting between them is F. If 25% charge of A is transferred to B, then force between the charges becomes:

Two point charges A and B, having charges +Q and -Q respectively, are placed at certain distance apart and force acting between them is F, if 25% charge of A is transferred to B, then force between the charges becomes:

Two point charges A and B, having charges +Q and -Q respectively, are placed at certain distance apart and force acting between them is F, if 25% charge of A is transferred to B, then force between the charges becomes:

Two similar conducting balls having charges + q and - q are placed at a separation d from each other in air. The radius of each ball is r and the separation between their centres is d (d gt gt r ). Calculate the capacitance of the two ball system

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.

Two identical metals balls with charges +2Q and -Q are separated by some distance and exert a force F on each other . They are joined by a conducting wire , which is then removed. The force between them will now be