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Three short electric dipoles, each of di...

Three short electric dipoles, each of dipole moment P, are placed at the vertices of an equilateral triangle of side length L. Each dipole has its moment oriented parallel to the opposite side of the triangle as shown in the fig. Find the electric field and potential at the centroid of the triangle

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The correct Answer is:
`E=sqrt(6sqrt(3)KP)/(L^(3));V=0`
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