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Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Questions  >  Solids do not have which type of polarisation... Start Learning for Free
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Solids do not have which type of polarisation?
  • a)
    Ionic
  • b)
    Orientational
  • c)
    Interfacial
  • d)
    Electronic
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
Solids do not have which type of polarisation?a)Ionicb)Orientationalc)...
Answer: c
Explanation: Solids possess permanent dipole moments. Moreover they do not have junction like semiconductors. Thus, solids neglect the interfacial and space charge polarisation. They possess only electronic, ionic and orientational polarisations.
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Solids do not have which type of polarisation?a)Ionicb)Orientationalc)...
Polarisation in Solids

In solids, polarization refers to the alignment of dipole moments within the material. It is the process by which the electric field of a light wave causes the charges in a material to oscillate and align in a particular direction.


Types of Polarisation

There are three main types of polarization in solids:


  • Ionic Polarisation: This type of polarization occurs in materials with ionic bonds. Ionic polarization is a result of the displacement of positive and negative ions in opposite directions under the influence of an electric field.

  • Orientational Polarisation: This type of polarization occurs in materials with permanent dipole moments. Orientational polarization happens when the permanent dipoles align themselves with the electric field.

  • Electronic Polarisation: This type of polarization occurs in materials with covalent bonds. Electronic polarization is a result of the displacement of electron clouds within the material.



Interfacial Polarisation

Interfacial polarization refers to the polarization that occurs at the interface between two different materials. It arises due to the accumulation of charges at the interface, leading to the formation of an electric double layer.


Explanation

The correct answer to the given question is option 'C', which is "Interfacial." Solids do not have interfacial polarization. Interfacial polarization is a phenomenon observed at the interface between two materials, and it is not a characteristic of the solid itself. Interfacial polarization occurs due to the accumulation of charges at the interface, while the polarization within the solid can be of ionic, orientational, or electronic nature.


In summary, solids exhibit ionic, orientational, and electronic polarizations, but they do not possess interfacial polarization.
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Solids do not have which type of polarisation?a)Ionicb)Orientationalc)Interfaciald)ElectronicCorrect answer is option 'C'. Can you explain this answer?
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