Two particles A and B, having opposite charges 2.0×10−6C and −2.0×10−6C, are placed at a separation of 1.0cm. Calculate the electric field at a point on th axis of the dipole 1.0cm away from the centre.
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Solution
The value of the dipole moment is :
p=q×d
p=2×10−6×0.01
=2×10−8
We know, Electric field at an axial point of the dipole =2Kpr3