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What is the capacitive reactance of a 1 µF capacitor at a frequency of 60 Hz?
Wiki User
∙ 14y ago
The capacitive reactance of a 1 µF capacitor at a frequency of 60 Hz is about 2700 ohms.
Wiki User
∙ 14y ago
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When is a capacitor like a 0.001 resistor?
A capacitor is like a 0.001 ohm resistor when the capacitive reactance is 0.001 ohms. Capacitive reactance, in ohms, is defined as -1 divided by 2 pi f C, where f is frequency in hertz, C is capacitance in farads, and the -1 means that current leads voltage. Plugging in 60 Hz, and solving for C, you get 2.65 farads. That is a very large capacitor. At 6000 Hz, you get 26.5 millifards, which is still very large. At 6 MHz, you get 26.5 microfards, but at 6 MHz, you need to consider parasitic inductance.
Why you use 400Hz frequency instead of 60Hz?
50 Hz has an edge over 60 Hz as it will have less skin effect and therefore line resistance will be less. Therefore, voltage drop as well as unwanted loss of energy in the line will be less. That means dip in supply voltage at user end will be less and efficiency will be more.AnswerThe difference in 'AC resistance' due to the effect of skin effect between 50/60 Hz is insignificant, just as the increase in inductive reactance, or the decrease in capacitive reactance is insignificant.The answer to your question is that the two frequencies simply resulted from the independent development of electricity distribution networks in different parts of the world, and there is no inherent advantage of one frequency of the other.Transformers for 60 Hz are smaller than for 50 Hz, assuming a given power rating. That is because the iron magnetic core can be reduced in size by 20% for 60 Hz, for the same peak magnetic flux density.
What would be the inductive reactance ohmsof a 9 Henry inductor at a frequency of 60 Hz?
Inductive reactence is given by Xl = 2*pi*F*L = 2*3.14*60*9 = 3.912 K Ohm
Why does an inductor block AC but allow DC?
While it is true that an inductor opposes the flow of an alternating current, it does not necessarily 'block it'. The quantity that opposes the flow of an AC current is the inductor's inductive reactance, expressed in ohms. Inductive reactance is proportional to the frequency of the supply voltage and, at 50 or 60 Hz, the reactance of a transformer's winding is relatively low (although very much higher than its resistance) and, while this acts to limit the amount of current flow, it certainly doesn't act to block that flow.
What is the inductive reactance of a 2 H inductor in a 60 Hz AC circuit?
The inductive reactance of a 15 Henry inductor at 60 Hz is about 5.7 KOhms. (2 pi f l)
If a capacitor of unknown capacitance is wired to an alternating voltage source with a frequency of 60 hertz and the resulting capacitive reactance is 663ohms what is the capacitance of the capacitor?
C = capacitance, f = frequency ===> Capacitive reactance = 1 / [ 2(pi)fC ] 663 = 1 / [ 2(pi)(60)C ] 663 x 2 x pi x 60 x C = 1 C = 1 / (663 x 2 x pi x 60) = 1 / (663 x 120 x pi) = 1 / 249,945.1 = 4 x 10-6 = 4 microfarads (almost exactly)
When is a capacitor like a 0.001 resistor?
A capacitor is like a 0.001 ohm resistor when the capacitive reactance is 0.001 ohms. Capacitive reactance, in ohms, is defined as -1 divided by 2 pi f C, where f is frequency in hertz, C is capacitance in farads, and the -1 means that current leads voltage. Plugging in 60 Hz, and solving for C, you get 2.65 farads. That is a very large capacitor. At 6000 Hz, you get 26.5 millifards, which is still very large. At 6 MHz, you get 26.5 microfards, but at 6 MHz, you need to consider parasitic inductance.
What is the capacitive reactance of a 100 µF capacitor at a frequency of 60 Hz?
XC = -1 / (2 pi f C)XC = about -2653 ohmsThe minus sign indicates the current is leading in the this case. Treat it as if the sign were not there.
What is the ohm rating of a 10v 330uf electrolytic capacitor?
Capacitive reactance is -1 / (2 pi f C), so the reactance of a 330 µf capacitor at 60 hz is -8 ohms. (The negative sign simply means that the current will lead the voltage.) However, an electrolytic capacitor is not designed for operation on AC, as it can only have voltage applied to it in one direction only. The equation still holds, however.
What effect capacitor has on alternating current ac?
In the basic configuration, a capacitor is constructed with two parallel conductor plates with a layer of insulating material in between. When the cap is hooked up to the AC power supply, the voltage (v) across the plates and the charge (q) induced on the plates follow this capacitance expression: C = dq/dv or i = C dv/dt, where C is determined by the properties of the insulating material and the geometry of the cap (in the case of the parallel plates, the separation between the two electrodes (t). For the parallel plates, C can be written as (dielectric constant * plate area / t). Electrically, the change in the charge induced on the plates (dq), is directly related to the change in voltage difference (dv) between the two plates, since C is a constant. Theoretically, no energy is lost by charging and discharging the cap with an AC current. When the cap absorbs electrical energy from the power supply, it stores the energy in the electric field in the insulator. When discharging, the cap gives the stored energy back to the circuit -- hence, no energy loss. In a circuit, we use the cap to prolong/smoothen/resist any voltage change in time or to absorb a sudden energy surge (electrostatic discharge and power-line glitches, for example).
What is x r ratio?
x/r ratio is reactance/resistance where reactance is impedance * frequency (60 hz)
Why you use 400Hz frequency instead of 60Hz?
50 Hz has an edge over 60 Hz as it will have less skin effect and therefore line resistance will be less. Therefore, voltage drop as well as unwanted loss of energy in the line will be less. That means dip in supply voltage at user end will be less and efficiency will be more.AnswerThe difference in 'AC resistance' due to the effect of skin effect between 50/60 Hz is insignificant, just as the increase in inductive reactance, or the decrease in capacitive reactance is insignificant.The answer to your question is that the two frequencies simply resulted from the independent development of electricity distribution networks in different parts of the world, and there is no inherent advantage of one frequency of the other.Transformers for 60 Hz are smaller than for 50 Hz, assuming a given power rating. That is because the iron magnetic core can be reduced in size by 20% for 60 Hz, for the same peak magnetic flux density.
How can you calculate current drawn in 60 HZ circuit?
You need to divide the supply voltage by the impedance of the load. The impedance of the load is the vectorial sum of its resistance and reactance, where reactance is proportional to frequency.
What happen when hz is increase?
Your question is rather vague, but what you may be asking is, "What happens in a circuit if the supply frequency is increased?"Well, circuits have some degree of natural resistance, inductance, and capacitance, which may be modified with resistors, inductors, and capacitors. Frequency affects each of these, as follows:Resistance -Resistance is inversely-proportional to a conductor's cross-sectional area. In a DC circuit, charge flow distributes itself across the full cross section of the conductor. However, with AC currents, an effect called 'skin effect' comes into play -this describes the tendency of charge carriers to move closer to the surface of the conductor, essentially reducing the effective cross-sectional area of the conductor, and increasing its resistance. We call this the 'AC resistance' of the conductor; at normal supply frequencies (50/60 Hz) this is insignificant, however it increases significantly with frequency.Inductance -Inductive reactance opposes the flow of AC current, and is directly proportional to the circuit's inductance and to the frequency of the supply. So, as frequency increases, the circuit's inductive reactance increases.Capacitance -Capacitive reactance opposes the flow of AC current, and is inversely proportional to the circuit's capacitance and to the frequency of the supply. So, as the frequency increases, the circuit's capacitive reactance falls.
What would be the inductive reactance ohmsof a 9 Henry inductor at a frequency of 60 Hz?
Inductive reactence is given by Xl = 2*pi*F*L = 2*3.14*60*9 = 3.912 K Ohm
What will happen when you put 50 hz equipment into 60 hz power supply?
Normally, there won't be any problem at all. Most power supplies will run on either frequency. However, when moving from one region to another, always check the voltage requirements of the equipment against the new region's mains voltage. Europe uses 230V for example while North America uses 110V. A lot of modern equipment has power supplies that will accept a wide range of input voltages but it is imperative that you check before connecting. All equipment should have an information label that sets out voltage requirements.
What is the inductive reactance of a 5 Henry coil connected to a 60 hz source?
inductive reactance= XL= 2*pi*.1*60=12pi ohm
