State coulomb law in vector form and prove that f21= -f12 where letters have their usual meanings
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Coulomb's law states that the electrostatic force between two point charges is directly proportional to the product of charges and inversely proportional to the square of distance between them.
Derivation is in the Attechment
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Class 12 Physics Electrostatics - Get here the Notes for ... to qualify the Class 12 with good score can check this article for Notes. ... Coulomb's Law in Vector Form ... point of an equipotential surface are normal to the surface.
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