Q 3281167927.     An electric dipole of dipole moment `vecp` is held in a uniform electric field `vecE`.
(i) Prove that no translatory force acts on the dipole.
(ii) Hence prove that the torque acting on the dipole is given by `pE sin theta`, indicating the direction along which it acts.
(iii) How much work is required in turning the electric dipole, from the position of most stable equilibrium to the position of most unstable
equilibrium?

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