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[" An electric dipole with dipole moment "],[vec p=(hat 3+4hat jmath)C-m," is kept in electric field "],[vec E=0.4kN/Chat i" .What is the torque acting "],[" on it & the potential energy of the dipole? "],[[" (A) "1600(N times m)hat k,-1200J],[" (B) "-1600(N times m)hat k,1200J],[" (C) ",-1600(N times m)hat k,-1200J],[" (D) ",1600(N times m)hat k,1200J]]

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