Electromagnet Model: Couple Questions Answered

[Neekman99]

Couple questions concerning this design:
- Would the object sit relatively still? As I assume in this design the magnet would not have to switch on and off repeatedly (as it would with traditional magnetic levitation) as there is a physical force applied to it?
- I'm guessing the rubber barrier of 10cm affect the strength of the magnetic field as the impedance will increase, what equations would be required to calculate the total current needed, no. of coils etc. to produce this force at a distance of 1m with this barrier?
Ignore the position sensor that is for my reference :)
Thanks.

 

[Vailanor]

Yes, the object would sit relatively still as the physical force applied to it would continuously balance out the magnetic field of the electromagnet. To calculate the total current needed, the number of coils, and other variables, you would need to use equations such as Ampere's Law, Faraday's Law, and other equations related to magnetism, electromagnetism, and circuit analysis. You would also need to consider how the rubber barrier would affect the strength of the magnetic field and its impedance.