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The higher the frequency of the current is, the further the travelling electrons are from the center of the conductor section. That's skin effect.
In very high frenquencies, such an effect even increases the resistance of the conductor because the current has less place to travel in.
What else can I help you with?
Why skin effect is frequency dependent?
skin effect occures in ac system due to un uniform distribution of current in conductor.Ac system has frequency.SO we can say that skin effect is frequecy dependent.AnswerThe skin effect is caused partly by self inductance which will only occur with a varying current -i.e. with an a.c. current.
What is the impact of the AC skin effect on the performance of electrical conductors?
The AC skin effect causes the flow of alternating current to concentrate near the surface of a conductor, reducing its effective cross-sectional area for current flow. This increases resistance and can lead to power loss and decreased efficiency in electrical conductors.
Skin effect related to ac and DC?
IT IS RELATED TO AC ONLY BKZ SKIN EFFECT DEPENDS FREQUENCY ONLY WHERE IS IN DC NO FREQUENCY
What is meant by skin effect?
The skin effect occurs in conductors carrying alternating currents, where the tendency is for the current to flow towards the surface of the conductor. The effect increases with frequency. At radio frequencies, the skin effect is so pronounced, that there is little point in using solid conductors, so tubes are used instead.The skin effect is responsible for the so-called 'AC resistance'. This is because the skin effect acts to reduce the effective cross-sectional area of a conductor, thus increasing its resistance compared to when a DC current passes through the conductor.
What is the relationship between current and frequency in AC circuit?
Two words: skin effect. Now let's chat. Picture a wire with DC flowing through it. We are going to look at a cross section of the wire without interrupting current flow. Make sense? Picture it. When current flows in a wire in only one direction (DC), it uses all the available metal in the wire. Current flow in the middle of the wire will be about the same per unit of cross sectional area as current flow will be near the outside of the wire. Let's switch our DC for some AC. AC (alternating current) will flow in one direction for a while and then reverse direction to flow the other way for a while. Such is AC. And AC will cause current flow that uses all the available cross sectional area of the wire just as DC does, but only at low frequency. At higher and higher frequencies, current flow in the wire will shift away from the center and be more concentrated near the surface of the conductor. Near the skin of the conductor. AC of higher frequencies will promote current flow by skin effect, and that is the effect of frequency in AC current flow.
Why does the skin effect in radio frequency caused?
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, at an average depth called the skin depth. The skin effect causes the effective resistance of the conductor to increase with the frequency of the current because much of the conductor does little. Skin effect is due to eddy currents set up by the AC current. At 60 Hz in copper, skin depth is about a centimetre. At high frequencies skin depth is much smaller.
Why skin effect for a conductor is not applicable for DC?
As we know that skin effect occures in ac system.skin effect dependes on frequncy.In case of dc syastem frequncy is zero.So skin effect for conductor is not applicable for dc.
Does electric current flow only on the surface of the copper conductor?
The AC current tend to flow on the surface of the conductor. The higher the frequency, the thinner the skin. This is known as the skin effect. So DC current flow throught the entire conductor but when the signal varies (AC) there is the formation of eddy current in the conductor itself and that pushes the electrons at the surface of the conductor. You can get more information on the skin effect and skin depth on wikipedia : http://en.wikipedia.org/wiki/Skin_effect http://en.wikipedia.org/wiki/Skin_depth
What is difference between skin effect and franty effect?
skin effect that happen because the current pass at the edge of the cable in the ac current because of the frequency but in the dc the current pass throw the whole conductor the franty effect the stray capacitor increase the voltage on the line due to light load and the
Does ac flow along the surface of the conductor?
Yes, in AC circuits the current tends to flow along the surface of the conductor due to the skin effect. This phenomenon occurs because high-frequency AC currents experience less impedance at the conductor's surface, causing them to concentrate there.
Why are AC and DC resistance different?
An AC current tends to flow towards the surface of a conductor due to a phenomenon called the 'skin effect', which acts to reduce the effective cross-sectional area of that conductor.Since resistance is directly-proportional to the cross-sectional area of a conductor, the conductor's resistance to an AC current is, therefore, higher than its resistance to a DC current (which distributes itself across the full cross-sectional area). We call this elevated value of resistance, AC resistance.The skin effect increases with frequency to such an extent that, at radio frequencies, there is little point in using solid conductors and tubes are used instead. At mains' frequencies (50/60 Hz), however, the skin effect is moderate and, so, the value of a conductor's AC resistance is only slightly elevated compared to its true resistance.It's important not to confuse the term 'AC resistance' with 'reactance', which is a function of a conductor's inductance and/or capacitance, and the frequency of the supply.
Which values of resistance is correct ac or dc?
AC current tends to flow towards the surface of a conductor due to what is known as the skin effect. This phenomenon acts to reduce the effective cross-sectional area of a conductor and, therefore, elevate its resistance. This elevated value of resistance is known as AC resistance.The skin effect increases with frequency. At 50/60 Hz, the skin effect is quite moderate and, so, the AC resistance is not significantly higher than the true (or DC) resistance of the conductor.As to 'which value of resistance is correct?' Well, the natural resistance of a conductor is directly-proportional to its cross-sectional area and resistivity, and inversely-proportional to its length and the type of current plays no part in this. This is the value that a DC current would 'see', so you could say that this would be the 'correct' value of resistance.
