The Field of an Electric Dipole | For Points on the Equatorial Plane of the Dipole

For Points on the Equatorial Plane of the Dipole

Let the point P be at distance r from the centre of the dipole on the equatorial plane, as shown in figure

Here, the components normal to the dipole axis cancel each other so the components along the dipole axis add up.

The total electric field is

    

     

     

     

         

      (r >> a)

  

     

    (p = 2qa)

  

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