[QUE/EM-03022] --- EM-PROBLEM

The permanent dipole moment of water molecule is given to be \(1.86\times10^{-18}\) esc-cm.  How much work is done on water molecule if electric field is increased from  zero to 100 volts/cm and the permanent dipoe is rotated from \(\theta=0\) to \(\theta=\pi\)? 
(Be careful about units.)

Atlee Jackson