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skin effect

The tendency of alternating current to distribute itself in a conductor such that the current density is greater near the surface than near the core. The effect increases with frequency

(Elektrik, Elektronik) The skin effect is the tendency of an alternating electric current (AC) to distribute itself within a conductor so that the current density near the surface of the conductor is greater than that at its core. That is, the electric current tends to flow at the "skin" of the conductor

The tendency of alternating current, as its frequency increases, to travel only on the surface of a conductor

technically, a physical phenomenon that relates to the limited penetration into a conductor of an RadioFrequent signal according to its frequency In a direct current case everything is constant and so nothing seems to happen With an alternating current, however, there is a delay in the magnetic field's response to the change in current and the 'old' magnetic field tends to push the current towards the outside of the conductor As the frequency increases, so does the effect until at very high frequencies the entire current flows in a very narrow skin on the conductor - hence the name Skin effect is negligable in car audio applications

The tendency of alternating current to travel only on the surface of a conductor as its frequency increases

The tendency of high frequency current to travel near the outside of an electric conductor rather than through its cross section Skin effect increases the effective resistance of a wire at higher frequencies While skin effect is a very important concern when working at the high frequencies of radio and television, it is widely considered to be a minor issue at the relatively low frequencies used in the audio world There are many audio purists, however, who dispute this and claim that it still does make a difference

The phenomenon in which the depth of penetration of electric currents into a conductor decreases as the frequency increases

  The tendency of alternating current to flow near the surface of a conductor, thereby restricting the current to a small part of the total cross-sectional area and increasing the resistance to the flow of current   Note:   The skin effect is caused by the self-inductance of the conductor, which causes an increase in the inductive reactance at high frequencies, thus forcing the carriers, i e , electrons, toward the surface of the conductor   At high frequencies, the circumference is the preferred criterion for predicting resistance than is the cross-sectional area   The depth of penetration of current can be very small compared to the diameter   [From Weik '89]

The tendency of alternating current to travel on the surface of a conductor as the frequency increases

The phenomenon in which the depth of penetration of electric current into a conductor decreases as the frequency increases

the tendency of high-frequency alternating current to distribute near the surface of a conductor

The tendency of alternating current to flow near the surface of a conductor

Really cool characteristic of high frequency high voltage The voltage doesn't actually go through the conductor It rides on the outside of it That is why when you touch a plasma globe, it doesn't knock you across the room (they run at about 10000V) Notice that I underlined high frequency If you try this with the output of a neon sign transformer, then you will just end up dead 60 Hz is not high frequency By high frequency, I mean above 20 kHz (rough guess) Most tesla coils run at about 100-250 kHz I have seen pictures of someone running about 1 MV of electricity through their body (he had thimbles on his fingers as discharge points so the arcs wouldn't burn him)

The tendency of alternating current to travel on the surface of a conductor as its frequency increases

The phenomenon wherein the depth of penetration of electric currents into a conductor decreases as the frequency of the current increases

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