Question

Is water a good dielectric material?

Answer 1

Dielectric material:

1. A dielectric material is a poor conductor of electricity but an efficient supporter of electrostatic fields.
2. It can store electrical charges and have high specific resistance and a negative temperature coefficient of resistance.
3. Dielectric materials are used in many applications such as Electronic components such as capacitors (responsible for energy storage properties of the device)
4. High-K / low-K materials are widely used in Semiconductors to enhance performance and reduce device size (where K refers to permittivity or dielectric constant)
5. Mathematically, Dielectric constant $\left(k\right)=\frac{E}{E_0}$, Where $E$=permittivity of the substance, $E_0$ = permittivity of a vacuum
6. Some examples of dielectric materials are:
   1. Solid Dielectrics – Ceramic, Plastic, Mica, and Glass.
   2. Dielectric Liquid – Distilled Water.
   3. Dielectric Gas – Dry Air, vacuum, nitrogen, and helium.

Thus, pure water or distilled water is a good dielectric material.