Magnetic Flux

Magnetic Flux is defined as

$$d{\Phi }_B=B\perp dA=B\cos (\varphi )dA=\vec{B}\cdot d\vec{A}$$

Where Magnetic flux is ${\Phi }_B$ , $\varphi$ is the angle between the surface and the Magnetic Field, $B$.

Magnetic Flux is measured in units of Weber, with SI abbreviation Wb.

One Weber is equal to $1T\cdot m^2$