Dielectric Constant

The ratio of the permittivity of a medium to that of a vacuum.

It is simply the ability of a substance to attenuate the transmission of an electrostatic force from one charged body to another. The lower the value, the greater the attenuation. The standard measurement apparatus utilizes a vacuum whose dielectric constant is 1. In reference to this, various materials are interposed between the charged terminal (at 20°C).

Click on an item to paste into clipboard or use clipboard symbol at end to clipboard all values
Acetic Acid 6.2 Clip
Air 1.00058 Clip
Ammonia 15.5 Clip
Bakelite 3.6 Clip
Benzene 2.3 Clip
Ethanol 25 Clip
Glass 5 Clip
Glycerol 56 Clip
Marble 8 Clip
Mica 6 Clip
Nylon 5 Clip
Olive Oil 3 Clip
Paper 2.3 Clip
Paraffin Oil 2.2 Clip
Paraffin Wax 2.2 Clip
Petroleum 2.2 Clip
Phenolic Resin 8 Clip
Polystyrene 3 Clip
Porcelain 4.4 Clip
Quartz 4.5 Clip
Shellac 3.5 Clip
Slate 4 Clip
Sulphur 3.5 Clip
Turpentine 2.2 Clip
Water 80 Clip
paste all data into clipboardpaste all data into clipboard

The exceptionally high value for water accounts for its unique behaviour as a solvent and in electrolytic solutions. Dielectric constant values decrease as the temperature rises.

See also: Dielectric.

Previous PageView links to and from this pageNext Page

Subjects: Physics