An electric dipole of moment P is lying along a uniform electric field E . The work done in rotating the dipole through ^c 3 is [ 30^ = 60^ =0 5, 30^ = 60^ = 3 / 2 ]

Step-by-step solution

The P.E. of a dipole in an electric field is W =- pE When =0^ , W ₁=- pE (0)=- pE When = 3 =60^ , W ₂=- pE (60^ )= - pE 2 aligned Work done = W ₂- W ₁ & =- pE 2 -(- pE ) & = pE 2 aligned