- #1

- 654

- 2

## Main Question or Discussion Point

ok, the magnetic field through a single ring is n[tex]\mu[/tex]I ,

so the flux is BAcos(theta), with cos(theta)=1, flux = BA = piR

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

so the flux is BAcos(theta), with cos(theta)=1, flux = BA = piR

^{2}n[tex]\mu[/tex]Iso 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