## Principles of Electricity and Electromagnetism |

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Page 62

If a polarized dielectric is electrically equivalent to an assemblage of dipoles in a

field , the corresponding energy may be found from Eq . ( 2 . 14 ) . Writing po for

the polarization per unit

If a polarized dielectric is electrically equivalent to an assemblage of dipoles in a

field , the corresponding energy may be found from Eq . ( 2 . 14 ) . Writing po for

the polarization per unit

**volume**the energy associated with a**volume**dv is – Po ...Page 69

component of VD and the

localized , the surface integral vanishes on choosing a sufficiently distant surface

and the

1 .

component of VD and the

**volume**integral of D . grad V . If the charges arelocalized , the surface integral vanishes on choosing a sufficiently distant surface

and the

**volume**integral may be written U = } ( D . E dv ( 2 . 33 ) by the aid of Eq . (1 .

Page 190

available energy is the difference between the product of the pressure and

liquid evaporation the

metal is ...

available energy is the difference between the product of the pressure and

**volume**for the electron gas on the two sides of the boundary . As in the case ofliquid evaporation the

**volume**occupied by a unit charge of electrons within themetal is ...

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