Consider a uniform, isotropic , homogeneous solid dielectric slab.(adsbygoogle = window.adsbygoogle || []).push({});

We know, induced surface charge=[tex]\overline{P}.\widehat{n}[/tex]

and [tex]\overline{P} \alpha[/tex] [tex]\overline{E}[/tex]

So, as applied electric field increases, polarizationper unit volumeincreases.

which implies that surface charge also increases.

But how can that be?Refer to the figure attached (similar fig. is given in Griffiths). This fig. tells us that the effective bound charge is the net charge at the surfaces which should be constant as the no. of atoms in a dielectric is constant.

Can someone explain this apparent anomaly to me?

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# Polarization and Bound Charges

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