Permeable coil cores; what's actually happening?

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In summary, the conversation discusses the description of how an electrical transformer works and whether the use of terms such as "conducts a magnetic field" or "allows magnetism to pass through" accurately reflects the process. The speaker argues that the permeable material's magnetic domains align in the presence of the magnetic field, creating their own temporary magnet, rather than simply providing a path for the flux. This results in hysteresis losses and challenges the accuracy of analogies used to describe the process. The conversation concludes with the speaker asking if their understanding is correct.
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Landru
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In descriptions of how an electrical transformer works, I've seen it said that the permeable core "conducts a magnetic field" or "allows magnetism to pass through better than it passes through air", but isn't that description misleading? Isn't it really the case that the permeable material's magnetic domains are just aligning due to the presence of the magnetic field, and then temporarily becoming a magnet in it's own right. So you're not "greasing the path" of the flux from the coil, rather you're multiplying the total about of magnetic flux that happens to be pointing in a certain direction, within a localized area. After all, this is why you have hysteresis losses: the permeable core can't flip it's own polarity as fast as the coil can impose it upon the material. It seems to me like describing a permeable core as creating a "route" for the flux to take, and similar analogies, are correct enough to be conceptually useful, but not strictly true.

Am I mistaken?
 
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1. What is a permeable coil core?

A permeable coil core is a type of magnetic core used in electrical transformers and inductors. It is typically made of a ferromagnetic material, such as iron or ferrite, that allows for the efficient transfer of magnetic energy.

2. How does a permeable coil core work?

A permeable coil core works by creating a closed magnetic circuit that allows for the concentration and efficient transfer of magnetic energy. When an electrical current flows through the coil, it creates a magnetic field that is amplified by the core material, resulting in a stronger magnetic force and increased efficiency.

3. What is the purpose of a permeable coil core?

The purpose of a permeable coil core is to increase the efficiency and performance of electrical transformers and inductors. It helps to concentrate the magnetic field and reduce energy losses, resulting in a more efficient transfer of electrical energy.

4. How does the permeability of a coil core affect its performance?

The permeability of a coil core plays a crucial role in its performance. A higher permeability allows for a stronger magnetic field and more efficient transfer of energy, while a lower permeability can result in energy losses and decreased performance.

5. Are there different types of permeable coil cores?

Yes, there are different types of permeable coil cores, such as laminated cores, powdered cores, and ferrite cores. Each type has its own unique properties and is suitable for different applications based on factors such as frequency, power, and cost.

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