- #1

member 662135

## Summary:

- I wondering if it is possible to create an electromagnet that has a diameter of 0.5 cm that can generate 75 - 100 lbs of pull force.

I wondering if it is possible to create an electromagnet that has a diameter of 0.5 cm that can generate 75 - 100 lbs of pull force. I took physics in college so I have a basic understanding of how magnets work, but I don't have any practical knowledge. I don't know what is feasible.

I found an equation that describes what properties of a magnet need to be adjusted to accommodate for a desired strength and size:

F = (n x I)

Thanks

I found an equation that describes what properties of a magnet need to be adjusted to accommodate for a desired strength and size:

F = (n x I)

^{2}x mu x A/2g^{2}- F = force = 430 N
- I = current = 25 amps
- g = length of the gap between the solenoid and a piece of metal = 2 cm
- A = area = 7 mm
^{2} - n = number of turns = 250
- mu = vacuum permeability = 4 x pi x 10
^{-7}

Thanks