4_Electric potential at equatorial point-by-Diwakar Karuppiah || தமிழ்
Channel: P6 Scholars Academy
Date: 2020-06-23

Electric potential at an equatorial point of a dipole: 
                                                                                            Consider an electric dipole consisting of charges -q and +q and separated by distance 2a let P be a point on the perpendicular bisector of the dipole at distance r from its centre O.

Electric potential at point P due to the dipole is
V=V_1+V_2=1/(4πε_o ).(-q)/AP+1/(4πε_o ).q/BP
                    =-1/(4πε_0 ).q/√(r^2+a^2 )+1/(4πε_0 ).q/√(r^2+a^2 )=0