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 +4e and +e are at a distance x apart. At what distance a charge q must be placed from charge +e1 so that it is in equilirium?

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

The charges +4q and +q are at a distance 3m apart. At what point between the charges, a third charge +q must be placed to keep it in equilibrium ?

The proton charges +4q and +q are at a distance 3m apart. At what point between the charges, a third charge +q must be placed tokeep it in equilibrium ?

Two fixed charges +4q and +q are at a distance 3 m apart. At what point between the charge, a third charge +q must be placed to keep it in equilibrium ?

Two fixed point charges +9e and +4e are separated by a distance x.Where should a point charge be placed between the two charges, so that it is in equilibrium?

Two point charges +4q and +q are placed at a distance L apart. A third charge Q is so placed that all the three charges are in equilibrium. Then location. And magnitude of the third charge will be

Two point charges +4q and +q are placed at a distance L apart. A third charge Q is so placed that all the three charges are in equilibrium. Then location. And magnitude of the third charge will be

+4e and +e are two charges separated by a distance 'a' m.Where should be a third charge 'q' be placed so that it is in equilibrium?

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?