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The coefficient of coupling between two air core coils depends on?
Wiki User
∙ 14y ago
Mutual induction only
Wiki User
∙ 14y ago
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Do the wire act as inductance?
Yes, even a straight piece of wire has inductance. One metre (or yard) of household flex has about 800nH (0.8uH) of inductance. Winding wire into coils makes them more compact, and multiplies the inductance of the assembly through coupling between turns. Using straight pieces of wire, the inductance is proportional to the length, but in a coiled inductor with 100% coupling, the inductance is proportional to the turns (length) squared! In many applications, iron or ferrite cores are used to further increase the inductance.
What happens to an electromagnet when electricity runs through it?
When an electric pulse runs through an electromagnet, the current travels in the electromagnets coils, causing a magnetic field to be developed inside and outside of the coils. The amount of coils, tightness of the coils, and the space between the coils are all very important factors in the production of said EM field.
Why does a fine beam tube show two lines?
you did not orient it perfectly between the two coils
How do the coils in a compression compare to the coils in a rarefaction?
me
Does the strength of an electromagnet depend on the number of volts passing through the wire or the number of coils of wire wrapped around the iron core?
The strength of an electromagnet depends on: -- The magnitude of the current through the wire. (This depends on the voltage between the ends of the wire.) -- The number of turns of wire in the coil wrapped around the iron core.
What is Coefficient of coupling?
It is a measure of how close is a coupling between two coils it gives an idea of wat portion of the flux produced by one coil links with the other coil
What are the minimum amount of winding of coil for inductive coupling to take place between two metal coils?
Not even a single turn, just having two wires "near" each other will cause some inductive coupling between them. This is one of the causes of "crosstalk" that causes signal to appear in weakened form on wires they don't belong on (the other cause is capacitive coupling, which is also present between any two wires "near" each other).The real matter is how much coupling you want (or can tolerate, if you don't want coupling).
What is the relationship between frequency and the size of a transformer?
Basically the characteristics of a transformer depends on the impedance(resistance) and on the coupling of its primary and secondary coils. The impedance of a coil depends on the frequency, as the frequency increases you need less volume of iron core and less number of turns in the coil for a given impedance, then reducing the size of the transformer.
The strength of an electromagnet only depends on the current in the coils?
And the amount of coils.
What is coupling in electronics?
AC coupling is where a capacitor is used to block the DC componant of a signal. Used often in Medical devices when a DC componant could harm a patient Coupling refers to transferring electrons trough a media. It could magnetic such as coils proximity. A transformer and yes even a capacitor. And no it has no medical devices ONLY application.
How many pounds r410 freon go into a home air conditioning unit?
That depends on the size of the coils and the length of line in between.
Is there any voltage induced in coil when axis of two coils at right angles to each other?
Coils at right angles do not couple if the distance is much greater than the diameters, but at close quarters there might be some small amount of coupling unless symmetry is perfect.
How many ignition coils does a car have?
It depends upon cylinder in car. 3 ignition coils - 3 cylinder engine. 4 ignition coils- 4 cylinder engine.
Where are the spark plugs on a dodge 3.7 engine?
They are under the coils and are located between the valve covers and the intake.They are under the coils and are located between the valve covers and the intake.
Is there a difference between evaporator coils and cooling coils in air conditioner unit?
usually both the same thing just different names. Most hydronic (water) systems are referred to as cooling coil and heating coil. Direct refrigerant system is an evaporator coil. Also depends on who your talking to.
Do the wire act as inductance?
Yes, even a straight piece of wire has inductance. One metre (or yard) of household flex has about 800nH (0.8uH) of inductance. Winding wire into coils makes them more compact, and multiplies the inductance of the assembly through coupling between turns. Using straight pieces of wire, the inductance is proportional to the length, but in a coiled inductor with 100% coupling, the inductance is proportional to the turns (length) squared! In many applications, iron or ferrite cores are used to further increase the inductance.
What happens to an electromagnet when electricity runs through it?
When an electric pulse runs through an electromagnet, the current travels in the electromagnets coils, causing a magnetic field to be developed inside and outside of the coils. The amount of coils, tightness of the coils, and the space between the coils are all very important factors in the production of said EM field.
