Strength of induced magnetic field inside an inductor

AI Thread Summary
The strength of the induced magnetic field in a coil is influenced by both the current flowing through it and its inductance. The diameter of the wire affects the maximum current capacity before fusing occurs. Increasing the length of the coil can enhance the acceleration area but does not necessarily increase the magnetic field strength if the turns per unit length remain constant. The relationship can be described by the equation B = μnI, where B is the magnetic field strength, μ is the permeability, n is the number of turns per unit length, and I is the current. Understanding these factors is crucial for optimizing coil design in applications like coil guns.
warfreak131
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I am trying to make a crude coil gun. I remember that if I run current through a coil of wire, it generates a magnetic field according to the right hand rule. Will the inductance of the coil of wire greatly affect the strength of the magnetic field, or is it mainly due to the strength of the current being run through the coil?

If possibly, can you provide me with a link to a website with more information or some equations?
 
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hi there

both, but remember that the diameter (gauge) of the wire used for the inductor will determine what the max current you can put through it before it fuses.

remember google is your friend ... here's just 1 of 1000's of links on the subject
http://www.allaboutcircuits.com/vol_1/chpt_15/1.html
cheers
Dave
 
thanks! also, let's assume I'm using a certain gauge of wire, and I'm wrapping them as close together. would making a longer coil create a stronger magnetic field? or would it only serve to make a longer acceleration area?

if B=unI, and I am wrapping them to the max tightness along the entire length, n would stay the same right?
 
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