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I crashes myself with this problem about diploe.

Please can I have some suggestions.

**Assume that the density of water is 1000 [kg/m3]**

and that there are 3.34 × 1025 molecules per kg of water. (One mole of water weighs 18.0[g] since atomic weight of water is 18.0. A mole contains a number of molecules that is equal to Avogadro number (6.02 × 10^23)).

Determine an average effective dipole moment of each water molecule when E=

Note: each molecule of water has dipole moment. The average dipole moment,

however, is zero since these dipole moments are randomly oriented. The average effectivedipole moment px is induced by the applied electric filed because the molecules are preferentially oreinted along the field.

and that there are 3.34 × 1025 molecules per kg of water. (One mole of water weighs 18.0[g] since atomic weight of water is 18.0. A mole contains a number of molecules that is equal to Avogadro number (6.02 × 10^23)).

Determine an average effective dipole moment of each water molecule when E=

__x__[V/m].(__x__is unit vector)Note: each molecule of water has dipole moment. The average dipole moment,

however, is zero since these dipole moments are randomly oriented. The average effectivedipole moment px is induced by the applied electric filed because the molecules are preferentially oreinted along the field.

they also talk about average effective dipole moment, I dont know what they mean by that!

thank you

B