Sorry missed out the most important part
ABcos(theata) cant find symbol for that.
the question asked you to find magnetic flux I have worked out A and B but Im unsure what it means when it says : the angle is 66 degrees below the horizontal:
The earths magnetic field at a certian location in the uk has a magnitude of 48x10-6T and is directed at 66 degrees below the horizontal.
Determine the magnitude of flux of the earths magnetic field through a wedding ring of diameter 2.2cm when the ring is held in the horizontal plane.
What is the magnitude of flux change when the ring is flipped through 180 degrees.