/sci/ - Science & Math » Thread #14191710

33KiB, 550x397, electromagnet.jpg

View Same Google iqdb SauceNAO

Anonymous Sat 05 Feb 23:06:21 2022 No.14191710 View Reply Original Report

Quoted By:

How to calculate the intensity and direction of a magnetic field at any x,y,z point in space around an electromagnet?

I need it for a science experiment

Anonymous

Anonymous Sat 05 Feb 2022 23:08:37 No.14191720 Report

Quoted By: >>14191729 >>14192071

it's complicated. unless you are using a simple geometry, you'll have to numerically compute it.

Anonymous

Anonymous Sat 05 Feb 2022 23:10:31 No.14191729 Report

Quoted By: >>14191734

>>14191720
OK, how?

Anonymous

Anonymous Sat 05 Feb 2022 23:12:20 No.14191734 Report

Quoted By:

>>14191729
FEM using galerkin method

Anonymous

Anonymous Sat 05 Feb 2022 23:14:45 No.14191747 Report

Quoted By:

i'll add that it's not hard to give a current and compute what fields it produces, but it is hard to compute the results of the field interacting with matter and exciting additional currents. typically you make a lot of assumptions to make the math tractable, or you formulate a finite element method (or perhaps finite difference method) and solve the system from there.

Anonymous

Anonymous Sun 06 Feb 2022 00:49:39 No.14192071 Report

Quoted By:

>>14191720
>unless you are using a simple geometry
what about simple coil like pic rel then?

Anonymous

View Same Google iqdb SauceNAO 1622381244580.png, 11KiB, 627x89

Anonymous Sun 06 Feb 2022 01:04:20 No.14192109 Report

Quoted By: >>14192179

a few years ago I knew how to do this shit, but I kinda lost touch with electromagnetism

First of all you need to go with polar coordinates
you'll need to solve something that looks like picrel, it's not that hard but takes some time if you're new to it

Anonymous

Anonymous Sun 06 Feb 2022 01:19:39 No.14192179 Report

Quoted By:

>>14192109
this is B field of point magnetic dipole in a linear homogeneous isotropic medium

Capcode	All Only User Posts Only Moderator Posts Only Admin Posts Only Developer Posts
Show Posts	All Only With Images Only Without Images
Deleted Posts	All Only Deleted Posts Only Non-Deleted Posts
Ghost Posts	All Only Ghost Posts Only Non-Ghost Posts
Post Type	All Only Sticky Threads Only Opening Posts Only Reply Posts
Results	All Grouped By Threads
Order	Latest Posts First Oldest Posts First

Your latest searches