Two small sphres of radius 'a' each carryig charges `+q` and `-q` and placed at points A and B, distance 'd' apart. Calculate the potential difference point A and B.

Two point charges +q and -q are placed d distance apart. What is the zero potential plane for them?

Two point charges +q and -q are placed at points A and B respectively separated by a samll distance. The electric field intensity at the midpoint O of AB :

Two thin rings each of radius R are placed at a distance 'd' apart. The charges on the rings are +q and -q. The potential difference between their centres will be -

Two point metal charges -q and +2q are placed at a certain distance apart.Where should a third point charge be placed so that it is in equilibrium?

Two point charges +q and -q are placed at point A and B respectively which are at a distance 2m apart. C is the midpoint between A and B. The work done by external agent in moving a charge Q slowly along the triangular path CED (AC=BC=BD)

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: