How does permittivity affect electric field intensity?

Hint: The permittivity of a material is the obstruction produced by the material in the formation of the electric field. Permittivity describes the effect of material on determining the electric field Intensity. The measure of the force exerted by one charge body to another. The permittivity affects the electric field Intensity.

Complete answer:
Space that is surrounded by the electric charge body where the field is formed and can be felt is called an electric field. The electric field intensity at a point is the force experienced by a positive charge particle at that point.
Electric field Intensity has magnitude and direction hence it is a vector quantity.
The force experienced by charge particle electric field is
$\vec{F}=Q\vec{E}$
Where “E” is electric field intensity.
Permittivity determines how an electric field is affected by any material medium.
If the electrical field during space is “E” is a vacuum and that we put a cloth medium with permittivity $\varepsilon $ there in the region, the electrical field reduces by an element of $\dfrac{\varepsilon }{{{\varepsilon }_{0}}}$ which is adequate to the dielectric constant of ${{k}_{d}}$ the medium.
Due to the presence of the fabric medium, the polarized field within the medium thanks to the electrical field somewhat cancels its effect and as a result, a decrease in the net field is observed.

Note:
The permittivity of a material is the obstruction produced by the material in the formation of the electric field. A higher dielectric constant means higher relative permittivity which suggests more resistance to the electric field. But a better dielectric constant means a rise in electric flux which results in a better capacitance.