"Dielectric Material" ed. by Marius Alexandru Silaghi
Publisher: InTeOp | 2012 | ISBN-13: 9789535107644 | 309 pages | PDF | 18,4 MB
The definition for dielectric constant relates to the permittivity of the material (symbol use here ε). The permittivity expresses the ability of a material to polarise in response to an applied field. It is the ratio of the permittivity of the dielectric to the permittivity of a vacuum. Physically it means the greater the polarisation developed by a material in an applied field of given strength, the greater the dielectric constant will be. Traditionally dielectric materials are made from inorganic substances eg. mica and silicon dioxide.