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 free point charges each of +4q and +q are placed at a distance a apart. Where should a third point charge Q be placed between them so that the entire system is in equilibrium?

Two point charges +q and -q are placed a distance x apart. A third charge is so placed that at the three charges are in equilibrium. Then

Two point charges +q and -q are placed a distance x apart. A third charge is so placed that al the three charges are in equilibrium. Then

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

Two free point charges +q and +4q are placed apart a distance x . A third charge is so placed that all the three charges are in equilibrium. Then

Two free point charges +q and +4q are placed apart a distance x. A third charge is so placed that all the three charges are in equilibrium. Then

Two point charges +q_1 and +q_2 are placed a finite distance 'd' apart. It is desired to put a third charge q_3 in between these two charges so that q_3 is in equilibrium. This is

The charges q each are placed at a distance 2a and a third charge -2q is placed at the mid point. The P.E. of the system is

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