Magnetic field intensity problem

[Saeed.z]

Hi everyone here, hope you enjoying this summer ..

i'm taking ' elements of electromagnetic ' course this summer session and i just have a little question here



in the yellow shaded statement

shouldn't it be dl = (l/N) dz instead of dl=(N/l) dz ?

By the way, it's not a HW question .

Thanks

 

[tiny-tim]

Hi Saeed.z!

shouldn't it be dl = (l/N) dz instead of dl=(N/l) dz ?

The magnetic field H (or magnetic moment density) is measured in units of amp-turns per metre (A.m^-1) …

current (I) times pitch (n), ie current times number-of-turns per length

n is the pitch, N is the number of turns, l is the length: n = N/l ​

 

[Saeed.z]

^

Thanks tiny-tim

i got it ! :)