Magnetic field lines directed?

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SUMMARY

The discussion centers on the feasibility of directing magnetic field lines to resemble a laser-like shape using neodymium cone magnets and solenoids. Participants suggest that while neodymium cones can direct field lines, their magnetic pull may be insufficient for the desired effect. A combination of two cone-shaped magnets with opposite magnetization or large solenoids with an iron core may amplify the magnetic field strength, potentially achieving a concentration of field lines. Achieving a magnetic field strength of half a Tesla may require substantial equipment, such as large solenoids or magnets the size of a refrigerator.

PREREQUISITES
  • Understanding of magnetic field lines and their behavior
  • Knowledge of solenoids and their construction
  • Familiarity with neodymium magnets and their properties
  • Basic principles of electromagnetism
NEXT STEPS
  • Research the design and construction of solenoids for magnetic field applications
  • Explore the properties and applications of neodymium magnets
  • Study the effects of magnetization patterns on magnetic field concentration
  • Investigate methods to measure and calculate magnetic field strength
USEFUL FOR

Physics students, engineers, and hobbyists interested in magnetism, magnetic field manipulation, and the practical applications of electromagnetism.

cn_2149
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Is it possible to direct or confine field lines to be shaped like a laser? I know there are magnets such as neodymium cones that direct field lines through the tip but they don't seem to have the amount of pull as I'm looking for. If there isn't, is there anyway to amplify the power? Maybe align multiple cones in a certain pattern so as to concentrate all of the lines to a point?

p.s. I'm a sophomore in AP Physics 1 and we have yet to go over magnetism. My apologies if I sound really dumb!
 
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Can you be more specific about what you are trying to accomplish? Technically, a very long solenoid has parallel field lines within it and near the ends.
 
To put it bluntly, I want to create a very powerful magnet that will direct most, if not all, of the field lines to a point. Like a laser. Could wrapping a solenoid around a cone help amplify the pull of the magnet? Also, how would the electric field affect the magnet? Thanks for the reply!
 
cn_2149 said:
To put it bluntly, I want to create a very powerful magnet that will direct most, if not all, of the field lines to a point.
If you have two cone shaped magnets with opposite magnetization, then it is possible to concentrate the field near a point as in the image below.
vOGyu.jpg

I suppose a strong field could be created using two large solenoids with an iron core which has a pointed edge on one side.

The problem is that I have no idea how strong of a magnetic field you need since I don't know what this is for. Getting a field strength of even half a Tesla will likely require a magnet the size of a refrigerator.
 

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NFuller said:
If you have two cone shaped magnets with opposite magnetization, then it is possible to concentrate the field near a point as in the image below.
View attachment 219084
I suppose a strong field could be created using two large solenoids with an iron core which has a pointed edge on one side.

The problem is that I have no idea how strong of a magnetic field you need since I don't know what this is for. Getting a field strength of even half a Tesla will likely require a magnet the size of a refrigerator.
Geez. Thanks for the help, I guess I'll have to try some stuff out!
 

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