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## Main Question or Discussion Point

if a di-electric was introduced to an electric field from the outside it would be polarized and the charge denisties would be as follows :

**volume bounded charge density ( ρv ) = - div ( P )

**surface bounded charge density ( ρs ) = P . n

where P is the polarization vector and n is the unit vector.

and what if the source of the electric field was coming from inside the di-electric ( as for example a free point charge ) would it still be the case ?

**volume bounded charge density ( ρv ) = - div ( P )

**surface bounded charge density ( ρs ) = P . n

where P is the polarization vector and n is the unit vector.

**now if the di-electric was originally neutral , should all these bounded charges sum up to zero ?**

( volume bounded charge density ρv + surface bounded charge density ρs = 0 ) ?( volume bounded charge density ρv + surface bounded charge density ρs = 0 ) ?

and what if the source of the electric field was coming from inside the di-electric ( as for example a free point charge ) would it still be the case ?