Enhancing Magnetic Fields: Series vs. Parallel Configurations

[jerich1000]

Restrictors and capacitors can be put in series or in parallel to amplify their affects.

Hydraulic pistons and pumps can be put in series to intensify pressure. Springs can be put in parallel or in series to come up with alternate, combined properties.

However, I can't think of a case where magnetic fields are somehow nested or added together to make a stronger inner field.

Is it possible to put a magnetic field within a magnetic field, nested in such a way that the inner field is amplified? Or is this not how magnetic fields work?

 

[MisterX]

However, I can't think of a case where magnetic fields are somehow nested or added together to make a stronger inner field.

It's extremely common. Haven't you ever seen an electromagnetic coil?

 

[68658]

Rodin coil? (though he's not a scientist of any degree)
Polywell
Robert bussards interstellar funel

 

[jerich1000]

MisterX, I know about electromagnetic coils.

If a medium-sized electromagnetic coil were put inside a larger electromagnetic coil, and if a smaller electromagnetic coil were put inside the medium sized coil, then would the three magnetic fields be additive?

If so, what would be the eventual limit?

Somehow I doubt that they're additive. But, I'm not an electrical engineer, so I'm asking people much smarter than I on this subject. (that would be you)

Thanks

 

[cragar]

What does amperes law say, The B field is proportional to the current enclosed, so if I wrap my solenoid with 2 wraps I will double the amount of enclosed current in my Amperian loop.

 

[I_am_learning]

MisterX, I know about electromagnetic coils.

If a medium-sized electromagnetic coil were put inside a larger electromagnetic coil, and if a smaller electromagnetic coil were put inside the medium sized coil, then would the three magnetic fields be additive?

If so, what would be the eventual limit?

Somehow I doubt that they're additive. But, I'm not an electrical engineer, so I'm asking people much smarter than I on this subject. (that would be you)

Thanks

Yes they add. Just as you are imagining. No hidden secrets!
In fact electromagnetic coils prodcue magnetic filed by additive action of each single turns (which behave as single turn coils by themselves)

Hum, the ultimate limit? Maybe this (check the fun fact) http://www.bigshotcamera.org/sections/fun/buildables/electromagnetism/electromagnet.html

 

[Bob S]

Click on the audio/visual slide show at the bottom of the page for a 9-minute presentation on the world's strongest nested-coil electromagnet (45 Tesla).

http://www.magnet.fsu.edu/usershub/scientificdivisions/dcfield/hybrid/index.html