Need references for magnetic force vs distance/angle topic

  • #1
Hi,

i'm finishing my final degree project, it's about a new type of pallet conveyor dragged by magnets.
I know for a fact that magentic force is inversely proportional to the distance squared, and i've designed and built my prototype with that in mind.
Now i'm writing my final report and i need to find actual scientific papers to use as reference when explaining that.
So, does anyone know a scientific paper or publicacion on the "magnetic force vs distance" topic?
I'm using regular neodymium magnets (no electromagnets or anything fancy).

Thanks in advance!
Marc S~
 

Answers and Replies

  • #3
I know for a fact that magentic force is inversely proportional to the distance squared,
Not necessarily. All physical magnets are dipoles where the field decays as the inverse of distance cubed. The force between two magnetic dipoles decays even faster since the magnetic force on a dipole with magnetic moment ##\mathbf{m}## is
$$\mathbf{F}=\nabla(\mathbf{m}\cdot\mathbf{B})$$
and thus the force would decay as the inverse of distance to the fourth power.
 

Related Threads on Need references for magnetic force vs distance/angle topic

Replies
3
Views
1K
Replies
12
Views
7K
  • Last Post
Replies
6
Views
1K
Replies
1
Views
7K
  • Last Post
Replies
8
Views
3K
Replies
6
Views
9K
Replies
10
Views
2K
  • Last Post
Replies
4
Views
991
Replies
1
Views
1K
  • Last Post
Replies
3
Views
2K
Top