As charges are separated on the surface of the dielectric but not in its interior volume.

Explanation:

A uniformly polarized dielectric is a dielectric material in which polarization is the same in all directions. It can be obtained by aligning the dipoles of a dielectric material in a uniform direction, either by applying an external electric field or by inducing polarization by other means.

Induced Volume Charge Density:

When a dielectric is subjected to an external electric field, the positive and negative charges of the molecules are separated and aligned along the direction of the field. This separation of charges is known as polarization, and it creates an induced electric field that opposes the external field.

This polarization results in the creation of an induced volume charge density. The induced volume charge density is proportional to the polarization and the gradient of the electric field. It is given by the equation:

ρv = -∇.P

where ρv is the induced volume charge density and P is the polarization vector.

No Induced Surface Charge Density:

In a uniformly polarized dielectric, there is no net charge on the surface. This is because the polarization is the same in all directions, and the charges are uniformly distributed throughout the material. Therefore, there is no induced surface charge density.

Conclusion:

A uniformly polarized dielectric amounts to induced volume charge density but no induced surface charge density. This is because the polarization creates an induced electric field that is distributed throughout the material, resulting in the creation of an induced volume charge density. However, there is no net charge on the surface because the charges are uniformly distributed throughout the material.