Write the expressiond for the work done on an electric dipole of dipole moment p in turning it from its position of stable equilibrium to a position of unstable equilibrium in a uniform electric field `vec E`.

Explanation

Work done to turn the dipole from its stable equilibrium position to unstable equilibrium position is :
`W = u_2 - u_1 = (pE) - (-pE) = 2 pE`.