Electrical field of an electric dipole

It can be seen that the unit of dipole moment measurement is C m. This is a very large value and therefore a significantly smaller one is used in chemistry, namely 1 Debye (D) 1 D is equal to 3.33 X 10 ° C m. 

When a dipole field is studied at a distance much larger than the dipole arm, it is called the point dipole. In spite of the fact that a dipole seemed to be an electrically neutral particle, it produces an electric field this field has different properties compared to a field of 

The potential and strength of the dipole field are defined not by a valne of charge q but by the dipole electric moment p = q l. With distance, the dipole potential and strength decrease faster (cp 1/r, E 1/r ) than those of a field of a point charge (1/r and 1/r, respectively). A configuration of the dipole electric field is shown schematically in Fignre 4.16. 

The vector M is directed perpendicular to the plane of drawing from a spectator. The resulting force in the uniform electric field is zero. 

In order to calculate the potential energy of a dipole in the uniform electric field we use the recipe given in Section 1.4.5. To calculate the potential energy we should first 

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