First slide
Electric dipole

Four point charges 1μC,-2μC,3μC  and -2μC  are arranged on the four vertices of a square of side 1 cm.  The dipole moment of this charge assembly is


p=qiri we can rearrange the charges to form three dipoles with charges as  (-2 and +2) ,(+1 and _1) and (-1 and +1) with first and third in opposite direction and second one is perpendicular to them.

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