What is magnetic flux?

How is magnetic flux (Φ) mathematically expressed?

What is the SI unit of magnetic flux?

If the angle θ between the magnetic field lines and the area surface is 90 degrees, what happens to the magnetic flux?

What happens to magnetic flux when the area through which the magnetic field lines pass increases?

If the magnetic field through a coil of wire changes rapidly, what phenomenon is induced in the coil?

What effect does moving a magnet towards a closed loop of wire have on the magnetic flux through the loop?

What happens to the magnetic flux through a loop when the magnetic field strength decreases?

When the magnetic field orientation is parallel to the plane of a loop, what is the magnetic flux through that loop?

What happens to the magnetic flux through a loop if the orientation of the loop is changed so that it is perpendicular to the magnetic field lines?