putting a heatsink on an electromagnet

[MrDudeMan]

this seemed obvious until i started thinking about it.

does a magnetic field lose strength if you put more stuff "in" it? if you have an iron rod through a coil of wire effectively creating an electomagnet and you hang a ball with just barely less weight than the capacity of the magnet, will it fall if you move something else into the field or attach something directly to the coil? i dont mean put it in the actual circuit...i mean like put a heatsink on the magnet wire to keep it cool...

sounds stupid...i know...but i am confused after thinking about it too much

 

[GimpyOne]

From my understanding...a bit rusty I'm sure...it would only make a difference if the material you are placing into the magnetic field is itself magnetizable. i.e. if you stick another piece of iron somewhere into the field then quite possible it will drop. If you wrap a bunch of copper around it, probably not.

 

[cirthix]

Originally posted by: GimpyOne
From my understanding...a bit rusty I'm sure...it would only make a difference if the material you are placing into the magnetic field is itself magnetizable. i.e. if you stick another piece of iron somewhere into the field then quite possible it will drop. If you wrap a bunch of copper around it, probably not.

sorry, i couldnt help but notice a pun