Dielectric

on . Posted in Electrical Engineering

Dielectric, abbreviated as DIEL, is a substance or material that is a poor conductor of electricity, but an efficient supporter of electrostatic fields.  Dielectrics are characterized by their ability to become polarized in the presence of an electric field.  When an electric field is applied, the positive and negative charges within the dielectric material separate, creating an induced electric dipole moment.

Dielectrics are commonly used in capacitors, which are electronic components that store electrical energy in an electric field.  The ability of a material to be an effective dielectric is often quantified by its relative permittivity (also known as the dielectric constant).  The higher the dielectric constant, the greater the material's ability to store electrical energy in an electric field.

Dielectrics are crucial in various electrical and electronic applications, such as insulating materials, capacitor design, and the functioning of transformers.  They are used to prevent the flow of electric current between conductors while allowing the storage and release of electrical energy. Common dielectric materials include ceramics, plastics, rubber, glass, and certain types of oils.

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Tags: Electrical Conduction