The electric field at a point on the equatorial plane at a distance r from the centre of a dipole having dipole moment p→ is given by, (r >> separation of two charges forming the dipole, ϵ0 - permittivity of free space)

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E→=−P→4π∈0r3

E→=P→4π∈0r3

E→=2P→4π∈0r3

E→=−P→4π∈0r2

answer is A.

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Detailed Solution

Electric field in equitorial planeE→=−14πϵ0P→r3

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