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CBSE Class 12-science Answered

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Asked by sachin.sondur2012 | 07 Feb, 2024, 11:26: AM
answered-by-expert Expert Answer

Let us consider the dipole ( q L ) as shown in figure .

Let P be the point along the line of dipole and it is at a distance R from centre of dipole as shown in figure.

Let R > > L

Electric field at P due to charges of dipole is given as

img

img

if higher powers of (L/2) is considered as negligible , then , we have

img

Hence magnitude of intensity of electric field at P is proportional to  ( 1/R3 )

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Answered by Thiyagarajan K | 08 Feb, 2024, 12:25: PM

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