39 What work must be done to rotate an electric dipole through an angle 0 with the electric field if an electric dipole of

Question

39 What work must be done to rotate an electric dipole through an angle 0 with the electric field if an electric dipole of moment p is placed in an uniform electric field E with p parallel to E a W pE 1 cos0 c E 2pE 1 cos0 b W pE 1 cos0 d None of these

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