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Solenoid force calculation

by Bern123
Tags: calculation, force, solenoid
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Bern123
#1
Apr19-14, 04:38 AM
P: 16
Hi all, i'm trying to calculate solenoid force using this tool:

http://www.daycounter.com/Calculator...lculator.phtml

I can't understand the ralation with A in the formula and also if this formula takes into account the lenght of solenoid.

I explain better:

If i have a solenoid with 2000 turns inner diameter of 10mm wire diameter of 0.1mm and solenoid lenght of 20mm i have 17.66 mH inductance.
If i have a solenoid with 2000 turns inner diameter of 10mm wire diameter of 0.1mm and solenoid lenght of 10mm i have 31 mH inductance.

I have more layers of wire in 10mm instead in 20mm and the force is higher.

So, this calculator calculate on a single layer? so does not consider the length of solenoid?

I need to calculate on a multiple layer solenoid. There is formula that from Magnetic B-field or Inductance i obtain force on a pice of metal that distant g(stroke)?
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