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Combination of Inductors

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templar165

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Self Inductance in a circuit is the opposition due to the magnetic flux developed when there is change in current. Inductors are symbolic representations in a circuit diagram to show the inductance in the circuits.
However, I've come across expressions for series and parallel combinations of inductors.
How is a combination of inductors physically accountable. I'm unable to visualize.

Thanks,
 
Well, as long as the magnetic fields from the inductors do not see (influence) eachother,
the inductance of the 2 coils can just be added up when in series.
In parallel it is just like resistors.

When the magnetic fields of the inductors influences eachother it get's tricky.
 
Originally posted by: templar165
Self Inductance in a circuit is the opposition due to the magnetic flux developed when there is change in current. Inductors are symbolic representations in a circuit diagram to show the inductance in the circuits.
However, I've come across expressions for series and parallel combinations of inductors.
How is a combination of inductors physically accountable. I'm unable to visualize.

Thanks,
Click to expand...

Inductors can be physically realizable as a discrete part (like having a simple coil). With that you can hook them up any way you want and hook up two coils end to end, or hook them up side by side etc...
 
Originally posted by: William Gaatjes
Well, as long as the magnetic fields from the inductors do not see (influence) eachother,
the inductance of the 2 coils can just be added up when in series.
In parallel it is just like resistors.

When the magnetic fields of the inductors influences each other it get's tricky.
Click to expand...

this, inductors (isolated from one another) have the same equations as resistors for parallel and series.

Series: L1 + L2 + ... + Ln = L(series)

Parallel: 1/L1 + 1/L2 + ... + 1/Ln = 1/L(parallel)
 
I know the equations...I learnt them a few days back at the college...I just wanted to understand how two inductors in series are practically possible..

@TuxDave - Thanks. Your explanation made me realize, that Solenoids make good inductors.
 
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