Two point charges +q and –q are held fixed at (–d, 0) and (d, 0) respectively of a (x, y) coordinate system. Then 

(1) E at all points on the y-axis is along i^

(2) The electric field E at all points on the x-axis has the same direction

(3) Dipole moment is 2qd directed along i^

(4) Work has to be done in bringing a test charge from infinity to the origin

Concept Videos :-

#8 | Electric Dipoles
#9 | Dipole EFI
#10 | Electric Field Superposition : 2 Electric Dipole
#11 | Electric Dipole(Short) : EFI
#12 | Electric Dipole in Uniform Electric Field : EFI
#13 | Oscillations of a dipole in Uniform Electric Field
#14 | Electric Dipole in Non uniform Electric Field
#15 | Force of interaction between two dipoles

Concept Questions :-

Electric dipole
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