Two charges +4e and +e are placed at a distance x. At what distance should another charge q be placed from the +e charge so that...

Two charges +4e and +e are at a distance x apart. At what distance,a charge q must be placed from charge +e so that is in equilibrium

Two charges +9e and +e are at a distance x a part.At what distance, a charge q must be placed from charge +e so that it is in equilibrium

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 charges e and 3e are placed at a distance r. The distance of the point where the electric field intensity will be zero is

(a) Two point charges Q and 16 Q are fixed at separation d . Where should a third point charge be placed between them so that it experiences no force I.e. in equilibrium ? (b) In the previous problem , if we replace Q by - Q , where should the third charge be placed on the joining the charges so that it is equilibrium ? (c ) Three point charges Q , q and Q are placed at x = 0 , x = d//2 and x = d . Find q in terms of Q so that all charges are in equilibrium. (d) Two point charges 9 Q and 25 Q are placed at separation d . Where should a third charge q be placed between them so that all charges are in equilibrium ? Also find the value of q and its nature.

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 charge 9e and 3e are placed at a distance r. The distance of the point where the electric field intensity will be zero is :

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 charges of equal magnitude q are placed at a distance 2a Another charge q of mass m, is placed midway between the two charges on X-axis. If this charges is displaced from equilibruim state to a distance x(x lt lt a) , then the particle :-