The process of producing electric dipoles, oriented in the direction of the field, is called dielectric polarization. Dielectric polarization is also the movement of charged particles under the action of the external electric field. So it is useful to make circuits, capacitors, etc. Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get the original essay VARIOUS POLARIZATION PROCESSES: Ionic polarization. make up a molecule share their electrons asymmetrically and cause the electron cloud to be attracted towards the strongest bonding atom, the atoms acquire charges of opposite polarity and an external field acting on these net charges will tend to modify the equilibrium positions of the atoms themselves, leading to ionic polarization. The net dipole moment is zero in the absence of an external electric field. This type of polarization typically occurs in ionic crystals (such as NaCl, KCl, and LiBr). Orientational polarization: when an ionic bond is formed between two molecules by the transfer of certain valence electrons, a permanent dipole moment arises there. This permanent dipole moment is equal to the product of the charges of the transferred valence electrons and the interatomic distance which separates them. In the presence of an electric field E, molecules carrying a permanent dipole moment will orient themselves to align in the direction of the electric field E. This process is called dipolar or orientational polarization. This only occurs in dipolar materials having permanent dipole moments. Electronic Polarization: Occurs due to the movement of the positively charged nucleus and negatively charged electrons in the opposite direction, when an electric field is applied. Finally creating a dipole moment in the dielectric material. Exposed by monatomic gases. Proportional to the volume of the atoms and independent of temperature. Interfacial/spatial charge polarization: This is present in dielectric materials that contain charge carriers that can migrate some distance through most of the material (by diffusion, etc.). Such distortion appears to an outside observer as an increase in sample capacitance and may be indistinguishable from the actual increase in dielectric permittivity. Keep in mind: this is just a sample. Get a personalized paper now from our expert writers. Get a Custom Essay In dielectric materials, localized charges (ions and vacancies, or electrons and holes) can jump from one site to another, creating hopping polarization. Similarly, the separation of positive and negative mobile charges under an electric field can produce interfacial polarization..