Dielectrics and Polarisation

Define the term polarisation of a dielectric and write the expression for a linear isotropic dielectric in terms of electric field.

The dielectric strength of air is nearly.

The dielectric strength of a material depends on its

What Is Meant By Dielectric Constant.

Define dielectric strength for a capacitor.

If dielectric constant and dielectric strength be denoted by $K$ and $X$ respectively then a material suitable for use as dielectric in a capacitor must have:-

The energy density at a point in a medium of dielectric constant $8$ is $26.55\times {10}^6 \frac{\mathrm{J}}{{\mathrm{m}}^3}$. Calculate electric field intensity at that point in ${10}^9 \mathrm{N}/\mathrm{C}$.  (Report your answer rounded off to 3 decimal places) 

Cotyledons are also called-

Which of the following set of characteristics of a material is suitable for using it as a dielectric in a capacitor?

If dielectric constant and dielectric strength be denoted by $K$ and$$$X$ respectively, then a material suitable for use as a dielectric in a capacitor must have