What is Skin Effect?

When a conductor is carrying alternating current or AC, this current is not uniformly distributed over the whole cross-section of the conductor. The current tends to concentrate near the surface of the conductor. This is called the skin effect.

Chapters:

00:00 Intro
00:25 Skin Depth and Frequency
01:09 Effective Cross-sectional Area.
01:38 Why skin effect occurs?
03:06 Factors affecting Skin effect.

[eulogiosalazar]

Watching this video as an electrician. Answered a lot of the questions I had and the information from this video will also benefit as I continue to work as an electrician.

[blitzwing]

Thank you so much. You did in 3.5 minutes what my professor did in 45mins.

[pancovilla]

Great video. other videos simply state the skin effect and how it affects things but not why it happens. Thank you.

[idleryder]

the visual representation was very helpful as a ibew 2nd year apprentice. thank you

[aleccraig]

I have a solenoid electromagnet I want to measure on an LCR meter. The REAL component of the impedance changes greatly with frequency. However I am orders of magnitude below the skin effects frequencies. Could skin effects be the cause of my REAL impedance changes because my wires are tightly packed? I don't think the standard skin depth equations apply

[minhnghia]

Thank you so much. This video is so easy to understand.

[minhnghia]

but i have a question. why not just use hollow metal rods instead of solid metal wires and save both weight and cost?

[SWEET-ul]

Ma'am
Magnetic field due to current carrying conductor is concentric and doesn't pass through the cross sectional area of the wire
So there shouldn't be any magnetic field passing through the wire
Resulting in magnetic flux being zero

According to faraday's law
Change in magnetic flux creates induced EMF


Since as I said earlier there is no magnetic flux (=BAcos theta )(B=0) in the wire
Then why WHY there is induced EMF as flux is already zero change in magnetic field will not change flux as the magnetic field is not passing through the wire to create a magnetic flux

[DL-yvcm]

Thank you so much. easy to understand and clear explanations

[channel]

For same cross sectional area, I have observed that standard conductor is more flexible than Solid, how it is possible?
Did Stranded conductor create more Sag?,
So they need more Towers?

[mhamadr]

Thanks so much its so useful for me and it will can help me for tomorrow face to face in class 🙂👏

[panduch]

great video and explanation, thank u very much