Magnetic flux!!!! 1. The problem statement, all variables and given/known data Find the flux of Earth's magnetic field of magnitude 5.00 10-5 T through a square loop of area 40.0 cm2 for the following: (a) when the field is perpendicular to the plane of the loop (b) when the field makes a 20.0° angle with the normal to the plane of the loop 2. Relevant equations flux = BA cos theta where A is the area and B is the magnetic field 3. The attempt at a solution on the first one i just multiplied 5e-5 by .4 and i got 2.0e-5... and it was wrong and i have NO idea why the second one i just used the answer i got previously (obviously wrong) and multiplied it by cos of 20... red x HELP!