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Derive an expression for electric field intensity (E) at a point which lies on the axis of an…

Physics20253 marksDerivation
Derive an expression for electric field intensity (E) at a point which lies on the axis of an electric dipole (having length $2l$ and dipole moment P) and which is at a distance ‘$r$’ from its centre.

Given: An electric dipole of length $2l$ and dipole moment P

To show: Electric field intensity (E) at an axial point at a distance ‘$r$’ from its centre

Answer

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Electric Charges and Fields

From ISC 2025 Improvement Physics Paper 1, question 9.