Question

plz explain di electric constant in simple way...​

Answer 1

Explanation:

Dielectric constant, property of an electrical insulating material (a dielectric) equal to the ratio of the capacitance of a capacitor filled with the given material to the capacitance of an identical capacitor in a vacuum without the dielectric material.

or.

dielectric, meaning a substance that is a poor conductor of electricity, but a good means of electrical storage. Whether we are talking about ceramic, glass, air, or even vacuum (another good dielectric), scientists use what is called the Dielectric Constant, which is the ratio of permittivity of a substance to the permittivity of free space. Or, in layman’s terms, the ratio of the amount of electrical energy stored in a material by an applied voltage, relative to that stored in a vacuum.

Answer 2

Dielectric Constant :-

=> The Dielectric constant (K) of the medium  is the ratio of the permittivity of the substance(ε) to  permittivity of the free space (ε0 )

=> In other words, dielectric constant is the ratio of the force of attraction or repulsion between the two similar point charges to the ratio of the force of attraction or repulsion between point charges separated by some distance.

=> K = ε / ε0

=> It is also known as Relative permittivity.

=> Its value is $\rm{8.85 \times 10^{-12}\;F/m.}$