Skin Effect in Electromagnetism: Detailed Explanation

AI Thread Summary
The skin effect in electromagnetism refers to the phenomenon where alternating current (AC) tends to flow near the surface of a conductor rather than uniformly throughout its volume. This occurs due to the self-induction of the magnetic field generated by the current, which creates opposing electromotive forces that are stronger in the center of the conductor. As a result, the current density is highest at the surface, leading to reduced effective conductivity in the interior. The deflection of electrons towards the surface is influenced by the changing magnetic fields that induce currents, causing a concentration of charge carriers near the conductor's surface. Understanding these principles is crucial for applications in electrical engineering and materials science.
Blogical
Messages
26
Reaction score
0
Can someone please explain in a detailed manner about skin effect in electromagnetism, particularly wanted to know why does this effect take place??
 
Physics news on Phys.org
Blogical said:
Can someone please explain in a detailed manner about skin effect in electromagnetism, particularly wanted to know why does this effect take place??

http://en.wikipedia.org/wiki/Skin_effect

.
 
I read the wikipedia link, and it does not explain as to why the current density is maximum at the surface and as to why the induced electro-motive force is maximum at the centre?
And more so why do the electrons get deflected the most towards the surface from the centre??
 
Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

So here is the motional EMF formula. Now I understand the standard Faraday paradox that an axis symmetric field source (like a speaker motor ring magnet) has a magnetic field that is frame invariant under rotation around axis of symmetry. The field is static whether you rotate the magnet or not. So far so good. What puzzles me is this , there is a term average magnetic flux or "azimuthal mean" , this term describes the average magnetic field through the area swept by the rotating Faraday...
View full post »

Similar threads

I What causes skin effect in AC currents?
Replies
2
Views
1K
Skin effect and electric shock question
Replies
2
Views
1K
I Does the Skin Effect cause charge to accumulate on the surface of a conductor?
Replies
36
Views
3K
A Question on Skin Effect and Eddy Currents
Replies
6
Views
2K
Skin depth: Same for current as for incoming EM wave?
Replies
3
Views
2K
Electric/Magnetic vicious cycle
Replies
1
Views
1K
The physics of eye and skin color
Replies
9
Views
3K
How can we deduce the kink effect in the electric field?
Replies
5
Views
2K
Inductance of a Solenoid Around a Conducting Sphere?
Replies
9
Views
2K
How Do Skin Electrodes Detect Heart Depolarization?
Replies
3
Views
8K

Hot Threads

Recent Insights

Back
Top