ok, the magnetic field through a single ring is n[tex]\mu[/tex]I ,(adsbygoogle = window.adsbygoogle || []).push({});

so the flux is BAcos(theta), with cos(theta)=1, flux = BA = piR^{2}n[tex]\mu[/tex]I

so why for the entire solenoid flux, it is now nL*the flux above? where L = length of solenoid

shouldn't multiplying it with just n = number of rings be suffice?

also, i don't really understand the magnetic flux. is it define to be the number of field lines per unit area? it is something like density right? so shouldn't it be flux = B/A ? i am getting confused :X

thanks

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Magnetic flux through a solenoid

**Physics Forums | Science Articles, Homework Help, Discussion**