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प्रश्न
Arrangement of an oxygen ion and two hydrogen ions in a water molecule is shown in figure below.
Calculate electric dipole moment of water molecule. Express your answer in terms of e (charge on hydrogen ion), l and θ.
उत्तर
P1 = P2 = e × l
P = 2p cos α
= 2 e × l cos `(θ/2)`
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