Interactions between polar materials and magnetic field

In summary, interactions between polar materials and an electric field can cause the dipoles within the material to align and create polarization in order to oppose the external field. Once the field is removed, the dipoles may return to their random orientation. This phenomenon is known as an electret. On the other hand, non-polar materials will not experience this alignment and polarization. Creative thinking can lead to a deeper understanding of our surroundings and other thought-provoking products.
  • #1
omar.abosamra
7
0
"interactions between polar materials and electric field"
sorry typing error.polar materials are those who have a permanent dipole ( like water molecules ) but these dipoles doesn't appear on the macroscopic scale due to their random orientation , so what if this polar medium is subjected to some electric field , the dipoles will align them selves and the medium will be polarized to oppose the outward field.

now if the outward field is gone , would the dipoles remain as they are ? and would the dipoles in the medium some up to be significant in the macroscopic scale ? or would the dipoles be randomly oriented again?

and what will happen in the same case but if the material medium was non-polar ?
 
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  • #2
What you describe is an http://en.wikipedia.org/wiki/Electret" [Broken].

Otto
 
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  • #3
You can do a simple examination, rub a plastic ruler to your hair and close it to thin dropper water; you can observe the deflection of water column just at closest area.


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1. How do polar materials interact with magnetic fields?

Polar materials, such as water or certain types of crystals, have a dipole moment, meaning they have positive and negative charges separated by a small distance. When a magnetic field is applied, the dipoles in the material align themselves with the field, resulting in an interaction between the two.

2. What is the effect of a magnetic field on polar materials?

A magnetic field can induce a magnetization in the polar material, meaning it can become magnetic itself. This is due to the alignment of the dipoles in the material with the field. Depending on the strength of the field and the properties of the material, this effect can be temporary or permanent.

3. Can polar materials be used to enhance or manipulate magnetic fields?

Yes, polar materials can be used to enhance or manipulate magnetic fields. This is known as the magneto-electric effect, where the electric and magnetic properties of a material are coupled together. By applying an electric field to a polar material, the resulting polarization can alter the magnetic field in the vicinity of the material.

4. How do polar materials affect the behavior of magnetic materials?

Polar materials can affect the behavior of magnetic materials in several ways. For example, the presence of a polar material can alter the magnetic properties of a material, such as its coercivity or magnetic susceptibility. Additionally, the magneto-electric effect mentioned earlier can also influence the behavior of magnetic materials.

5. Are there any practical applications of the interaction between polar materials and magnetic fields?

Yes, there are many practical applications of this interaction. One example is in the development of magnetic storage devices, where polar materials are used to increase the storage capacity and decrease the power consumption of hard drives. The magneto-electric effect is also being studied for potential use in energy harvesting and sensing technologies.

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