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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.
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Why the medium conductivity is low at high frequency?
skin effect. current flow concentrates near surfaces and avoids the bulk.
What effect does the amplifier have on the frequency of the signal?
No effect on frequency but increases it's amplitude.
Does the resistance depend on the frequency?
Yes. The resistance does depend on frequency. The reason is 'skin effect'. When an alternating current is passed through a conductor only a small portion of the conductor, usually called the skin depth carries the current. The value of skin depth is inversely proportional to frequency. As the frequency is increased, the skin depth decreases. But the value of ac resistance is directly proportional to frequency, or in other words, inversely proportional to skin depth. Thus, at higher frequencies, ac resistance is higher. This is the reason why we multiply the dc resistance by an empirical value 1.2 or 1.3 to calculate its ac equivalent.
What is the effect of frequency on calibration of thermocouple?
the frequecy effect arises because of various factors such as: 1. Skin effect. 2. non uniform distribution of current along the heater wires. 3. spurious capative currents.
What is the effect of frequency change on transmission losses?
Higher the frequency, higher the losses.
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 method is used to determine a star's speed of approach?
The Doppler effect - a change in frequency, dependent on relative speed.
What is meaning electrical skineffect?
Skin effect is the tendency of more electrons to travel on the outside of a conductor than on the inside. The skin effect is more pronounced as frequency goes up.
Why skin depth is independent of frequency?
Skin depth is not independent of frequency. It is inverse proportional to the frequency.
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.
The decrease in effective conductor cross section at high frequencies?
Is called skin effect. The higher the frequency, the worse the issue.
Why the medium conductivity is low at high frequency?
skin effect. current flow concentrates near surfaces and avoids the bulk.
What is skin effect of AC current?
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.
Effect of high frequency sounds in birds?
effect of high frequency sounds
What effect does the amplifier have on the frequency of the signal?
No effect on frequency but increases it's amplitude.
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 the resistance depend on the frequency?
Yes. The resistance does depend on frequency. The reason is 'skin effect'. When an alternating current is passed through a conductor only a small portion of the conductor, usually called the skin depth carries the current. The value of skin depth is inversely proportional to frequency. As the frequency is increased, the skin depth decreases. But the value of ac resistance is directly proportional to frequency, or in other words, inversely proportional to skin depth. Thus, at higher frequencies, ac resistance is higher. This is the reason why we multiply the dc resistance by an empirical value 1.2 or 1.3 to calculate its ac equivalent.
