## Principles of Electricity and Electromagnetism |

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Page 63

where pn is the normal component of the

dielectric. If the

independent of the coordinates and g* = 0, i.e., there is no net charge density

within the ...

where pn is the normal component of the

**polarization**vector at the surface of thedielectric. If the

**polarization**is uniform throughout the dielectric, pp isindependent of the coordinates and g* = 0, i.e., there is no net charge density

within the ...

Page 71

Also, the average value of E over a region is not the effective value of the field,

under the influence of which a molecule is

itself contributes to the average value of E. Nor is it possible to calculate this field

...

Also, the average value of E over a region is not the effective value of the field,

under the influence of which a molecule is

**polarized**, for the**polarized**moleculeitself contributes to the average value of E. Nor is it possible to calculate this field

...

Page 77

It may be shown that this leads on simple assumptions to an effective

n No field Field E FIQ. 3.1. — Schematic representation of the instantaneous

orientation of the molecules of a polar gas under the influence of an electric field.

It may be shown that this leads on simple assumptions to an effective

**polarization**n No field Field E FIQ. 3.1. — Schematic representation of the instantaneous

orientation of the molecules of a polar gas under the influence of an electric field.

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