When three electric dipoles are near each other, they each experience the electric eld of the other two, and the threedipole system has a certain potential energy. The gure shows two arrangements in which three electric dipoles are side by side. Each dipole has the same magnitude of electric dipole moment, and the spacings between adjacent dipoles are identical. In which arrangement is the potential energy of the threedipole system greater? 1 ll (m (b) O Energies are the same. 0 Energy of (a) is greater than energy of (b). 0 Energy of (a) is less than energy of (b). Q We may not say without knowing the amount of charges