What is the difference between linear and non-linear dielectrics?

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Discussion Overview

The discussion revolves around the distinction between linear and non-linear dielectrics, focusing on definitions, examples, and characteristics of each type. The scope includes conceptual clarification and technical explanation.

Discussion Character

  • Conceptual clarification, Technical explanation

Main Points Raised

  • One participant requests a definition of a linear dielectric.
  • Another participant states that in a linear dielectric, the electric displacement field D is proportional to the electric field E.
  • A further contribution explains that in a linear dielectric, the electric dipolar moment per unit volume (modulus of vector P) has a linear dependence on the electric field E.
  • A participant asks for examples of linear and non-linear dielectrics.
  • One participant provides examples, stating that glass is mostly linear while barium titanate is highly non-linear.

Areas of Agreement / Disagreement

Participants appear to agree on the definitions and examples provided, but the discussion does not explore deeper implications or nuances of linearity in dielectrics.

lavster
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can someone please tell me what a linear dielectric is, in words?

thanks
 
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One in which D is proportional to E.
 
In a linear dielectric the electric dipolar moment per unit volume (modulus of vector P) has a linear dependence on the electric field E
 
thanks for that! could you give me an example of a dielectric which is linear, and one which is not please?
 
Glass is mostly linear whilst barium titanate is highly non-linear
 

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