Help With a Simple Experiment

[rukiddingme]

I've been going around about an aspect of the Kore design for a while. Some people say that you need a equal force between two electromagnets to release the magnetic grip between them. I am under the impression that you would not need an equal force to cause just the release of the magnetic grip.

I ask with the deepest humility for someone to perform this simple experiment.

Take two identical electromagnets with metal cores in a vertical configuration. Energize the first (upper) electromagnet with enough current so it can easily support the weight of the second (lower) non-energized electromagnet. It might help that it is not energized to it's full rating. Now increase the current to the second (lower) electromagnet until it falls away. Note the currents to both and tell me if they are the same or different and if different, what the difference is.

I can't tell you how much I would appreciate someone doing this for me.

Thanks in advance.

[greendoor]

It will almost certainly be a lower current, because you have the force of gravity to assist the seperatation.  What are you trying to achieve anyway? 

[rukiddingme]

It will almost certainly be a lower current, because you have the force of gravity to assist the seperatation. 

Yes, you are right, I must be more exact about this. That was to get an estimate, I wanted to eliminate human interpetation, but the only easy way to get a result is by hand. What must really happen is that you lay them side by side and apply current until there is no attraction or repulsion. The only way I see this being done is to test it by hand, to change the current a little at a time until you find the sweet spot where there is a null force between them, no attraction or repulsion. Thanks for pointing this out, greendoor, it helps.

What are you trying to achieve anyway? 

Trying to figure out the feasibility of this project:

Kore - Magnetic Overly-efficient Variable Engine Rotary

http://www.dreamslaughter.com/kore/kore.htm

[petersone]

Hi All
Surely it is a valid test,as the top e/mag has to hold against gravity
happy hunting
peter

[petersone]

Hi All,again
Second thought,ignore last post,not valid test.
happy hunting.
peter