- #1

ktmsud

- 13

- 6

- TL;DR Summary
- Magnetic flux and magnetic flux density are defined in terms of number of magnetic field lines. is it appropriate?

Magnetic flux density(B) is defined as, magnetic force per unit pole strength and flux is defined as magnetic field passing normally through given surface. I think, I am clear about these definitions, and quantitative meaning they carry.

I usually find, in some texts, the definitions as in image below

As far as I know one can draw infinite number of magnetic field lines ( as you can draw one magnetic field line between two and repeat this process infinitely). Is there something that I am missing? If one can draw infinite number of lines then how can this definition give correct values for flux and flux density?

I usually find, in some texts, the definitions as in image below

As far as I know one can draw infinite number of magnetic field lines ( as you can draw one magnetic field line between two and repeat this process infinitely). Is there something that I am missing? If one can draw infinite number of lines then how can this definition give correct values for flux and flux density?