Understanding Flux Density in Coils: Equations and Factors Explained

[ElectricJosh]

Hello,

I am looking into magnetic flux density in coils can anyone tell me if there is a general equation that equates flux density to the electric current, the coil's dimensions and number of turns?

Any help would be appreciated.

Thanks.

 

[Simon Bridge]

Welcome to PF;
You should have that relationship in your notes already ...
Do you know how to find the magnetic field in a coil?
Do you now the relationship between flux density and magnetic field?

http://en.wikipedia.org/wiki/Magnetic_flux_density

 

[ElectricJosh]

Thanks for your reply.

I typed in your questions in google and I found a website that explains the relationship quite well.

http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/solenoid.html

 

[Simon Bridge]

Well done - that site tells you about the magnetic field in a solenoid - if you know the relationship between magnetic field and magnetic flux density, you are set :)

 

[sardar]

Hello there,

Yes, there is a general equation that relates magnetic flux density to the electric current, coil dimensions, and number of turns. This equation is known as the Biot-Savart Law and is given by B = μ0 * I * N / l, where B is the magnetic flux density, μ0 is the permeability of free space, I is the electric current, N is the number of turns in the coil, and l is the length of the coil.

However, it is important to note that this equation is a simplified version and does not take into account factors such as the shape and material of the coil, as well as external magnetic fields that may affect the flux density. To get a more accurate calculation, you can use the Maxwell's equations, which take into account these additional factors.

I hope this helps. Let me know if you have any further questions. Best of luck in your research!

Best,