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ZecronTech
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So I was reading a thread on PF talking about the radius of a solenoid and Bob S answered with a link:
On that site, it states that the Radius = the outer radius - the inner. It doesn't make sense. What happens when there is only one layer of coil and the outer radius (OR) is basically the inner radius (IR). That would create a larger magnetic field than if I had multiple layers of coils and the OR > IR which would then create a smaller one. I don't understand why.
Bob S said:This equation for the on-axis field is exact both inside and outside the solenoid:
http://www.netdenizen.com/emagnettest/solenoids/?solenoid
You can add more layers at the ends.
Bob S
On that site, it states that the Radius = the outer radius - the inner. It doesn't make sense. What happens when there is only one layer of coil and the outer radius (OR) is basically the inner radius (IR). That would create a larger magnetic field than if I had multiple layers of coils and the OR > IR which would then create a smaller one. I don't understand why.