Graphs of electric field due to binary charge configuration

[gaurav0751]

sir in the graphs of electric field due to binary charge configuration
why some curves are below x-axis and some
are above x axis

 

[UltrafastPED]

Show one of your graphs; the axes of the graph depend upon the conventions chosen for the coordinate system.

 

[gaurav0751]

i have attached graphs

 

[jtbell]

Those seem to be graphs of E along the line connecting the two charges. Remember E is actually a vector: it has magnitude and direction. At some points, E is to the right (shown as positive on the graph); at other points, E is to the left (shown as negative on the graph).