Two point charges +Q and - Q are placed at the vertices 'B' and 'C' of an equilateral triangle ABC of side 'a' as given in the figure. Obtain expression for a) the magnitude of the resultant electric field at the vertex 'A' due to these two charges.
Two point charges +Q and - Q are placed at the vertices 'B' and 'C' of an equilateral triangle ABC of side 'a' as given in the figure. Obtain expression for a) the magnitude of the resultant electric field at the vertex 'A' due to these two charges.










