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What are polar and non polar dielectric ,give one example each other ?Define di-electric constants.

Solution
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NON POLAR DIELECTRICS:

  • Are made of non-polar molecules.
  • The center of mass of positive charges coincides with the center of mass of the negative charges, in the molecule.
  • In its normal state (i.e., in the absence of any external force, esp electric field), each molecule has zero dipoles and
  • has a symmetric shape.

POLAR DIELECTRICS:

  • Are made of polar molecules.
  • The center of mass of positive charges does not coincide with the center of mass of the negative charges, in the molecule.
  • In its normal state (i.e., in the absence of any external force, esp electric field), each molecule has some intrinsic permanent dipole and
  • has an asymmetric shape.
The dielectric constant is the ratio of the permittivity of a substance to the permittivity of free space. It is an expression of the extent to which a material concentrates electric flux, and is the electrical equivalent of relative magnetic permeability.

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