Magnetic field lines directed?

AI Thread Summary
Field lines can be directed using specific magnet shapes, such as neodymium cones, but their pull may not be sufficient for all applications. A long solenoid can create parallel field lines, and combining two cone-shaped magnets with opposite magnetization can help concentrate the field at a point. To achieve a strong magnetic field, using two large solenoids with an iron core and a pointed edge is suggested. However, achieving a field strength of half a Tesla may require a substantial magnet size, comparable to a refrigerator. Experimentation is encouraged to explore these concepts further.
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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