Skin Effect

Created: 5/26/2020Last Updated: 5/26/2020


 The skin effect refers to the phenomenon in which AC current tends to flow predominantly along the outer surface of a conductor, rather than uniformly throughout its cross-section.

Skin Depth: The skin depth is a parameter used to characterize the extent of the skin effect within a conductor. It is defined as the depth at which the current density is 37% (1/e) of the current density found on the conductor surface. In other words, it represents the distance from the surface at which the current density has significantly decreased.


Note: The reduction in skin depth effectively reduces the effective cross-sectional area of the conductor available for current flow, thereby increasing its resistance to current flow.


Understanding the skin effect is crucial in high-frequency applications, such as power transmission and high-speed data transmission, where it can have a significant impact on the performance and efficiency of conductors. Proper conductor sizing, choice of materials, and consideration of skin depth are important in minimizing the impact of the skin effect and optimizing the design of electrical systems.

For further reading and in-depth information, you can refer to the article on "Skin Effect" available at the provided reference link: "Skin Effect" [Link:].