Answer:
B) the amount of magnetic field that passes through a surface
Explanation:
The magnetic flux is defined as the total magnetic field times the area normal to the magnetic field lines passing through it.
Mathematically:
[tex]\phi_B=\vec{B}.\vec{A}[/tex]
where:
[tex]\vec{A}=[/tex] area vector directed normal to the surface
[tex]\vec{B}=[/tex] magnetic field vector
It is a quantity defined for the convenience of use in Faraday's Law.
