It’s the component of the flux that passes through the coil that’s shared by all. Magnetic flux is represented by the symbol B, where B could be a field and therefore the unit is Weber (Wb). The magnetic flux value could be a vector quantity that depends on the flux direction.
Magnetic flux refers to the total number of magnetic field lines penetrating any surface placed perpendicular to the magnetic field. It is calculated as the product of the average magnetic field strength and the perpendicular area it penetrates.
Magnetic flux is denoted by ΦB where B represents magnetic field, and its unit is tesla-meter2 or weber (Wb).
Mathematically, the magnetic flux formula is as follows:
ΦB=B⃗ .A⃗ ΦB=B→.A→Φ�=�→.�→Φ�=�→.�→
Or,
ΦB=BAcosθΦ�=������
Where, B is the magnetic field of force, A is the surface area or extent and θ is the angle between the normal to the surface and the magnetic field.
If a coil of n turns and area of cross section A is placed in a magnetic field of strength B, then the total flux associated with the coil is:
ΦB=nBAcosθΦ�=�������
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