Transformer coils Seperated ?
But just imagine ,i start taking the secondary coil away from primary coil slowly, What would happen ?
How can i analyse the change in behavior with distance ? any book or text that describes this ?
At what maximum distance would transformer action loose ? (On what factors would it depend ? )
I ask too much , Do I ?
Thanks anyways !
It is the mutual inductance that makes one coil's input affect the other coil's output. You will have two equations with the mutual inductance in both and just one coil's inductance in either.
If you can have still the magnetic flux completely inside the two windings there is no problem.
As soon as the flux is lower, the mutual inductance will be lower and the power transferred from primary to secondary.
Mandi
So long as the two coils are concentric even if you move them apart radially the flux linking them will remain the same.
If you were to tilt one of the coils at an angle then the flux linkage wud decrease and this wud in turn reduce the mutual inductance and the power transferred.
What type of transformer do you have in mind?
High frequency or 50/60Hz main trnsformer .
I have never met "high ferequency autotransformer" rather the description "hf coil with tap" is used for such a device.
From the other hand I have never heard about adjusting the distance between the coils in 50Hz transformer.
The physics of both (high freq. and 50Hz) is the same, but in practice 50Hz. Transformers have a core enabling the magnetic flux to flow in closed ring.
There is an analogy between the magnetic fux and electric current (The phisical phenomenens are different but the mathematical instuments are alike).
In case of transformer with the core, the distance (in cm ) between the coils is not significant. In other words: The mutual inductance of primary and secondary wounded on commom collumn is the same as mutual inductance between primary and secondary wounded on separate columns (with few cm distance between the columns).