Electric lines of forces are produced by three point charge arranged vertically as reveals in Fig. These three point charges have same magnitude. Define and explain the nature of these three point charges. Find the point or points at which value of electric field is smallest. how the electric fields generated by each ndividual point charge combine to give a small net field at this point.

Electric lines of forces are produced by three point charge arranged vertically as reveals in Fig. These three point charges have same magnitude. Define and explain the nature of these three point charges. Find the point or points at which value of electric field is smallest. how the electric fields generated by each ndividual point charge combine to give a small net field at this point.