Two charges +q and -q are placed at distance r. Match the following two columns when distance between them is changed to r'.

Two charge +q and -q are placed at distance r. Match the following two columns when distance between them is charged to r'.

Two free charges q and 4q are placed at a distance d apart A third charge Q is placed between them at a distance x from charge q such that the system is in equilibrium. Then magnitude of third charge and postion,

Two point charges 2q and 8q are placed at a distance r apart. Where should a third charge -q be placed between them so that the electrical potential energy of the system is a minimum

Two point charges 2q and 8q are placed at a distance r apart. Where should a third charge -q be placed between them so that the electrical potential energy of the system is a minimum

Two free charges q and 4q are placed at a distance d apart A third charge Q is placed between them at a distance x from charge q such that the system is in equilibrium. Then

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

Two charges +q and -q are situated at a certain distance. At the point exactly midway between them,

two charge +q and -q are situated at a certain distance. At the point exactly midway between them

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?