How does a DC current polarize

[jsmith613]

from my understanding polarization is a way of causing objects to be diametrically opposed (North and South poles for example)

What I don't understand is how a DC current polarizes a metal. Obviously for something to be magnetic it MUST be polarized but why does a DC current have to be used, why can't it be an AC current?

Thanks

 

[vebrown]

An AC current when coiled around a magnetic capable material continually switches poles with each repeating cycle. This disrupts the magnetizing process. A DC current keeps the same polarity so that the material can align its atoms and so take on the magnetic property.

 

[astrokreng]

for your question. The process of polarization in a DC current involves the alignment of the electric charges within a material in a specific direction. This can be achieved through the application of a DC (direct current) electric field. When a DC current is applied, the electrons within the material will align themselves in the direction of the electric field, creating a polarization effect.

On the other hand, an AC (alternating current) electric field constantly changes direction, making it difficult for the electrons to maintain a consistent alignment. This results in a weaker polarization effect compared to a DC current.

As for why a DC current is typically used for polarization, it is because of its ability to create a stronger and more stable polarization effect compared to an AC current. This is important for many applications, such as in the production of permanent magnets or in electronic components where a consistent polarization is necessary for proper functioning.

I hope this explanation helps clarify the role of DC current in polarization. Please let me know if you have any additional questions.