1. The problem statement, all variables and given/known data A 200-loop coil of cross sectional area 8.5 cm2 lies in the plane of the page. An external magnetic field of 0.060 T is directed out of the plane of the page. The external field decreases to 0.020 T in 12 milliseconds. (a) What is the magnitude of the change in the external magnetic flux enclosed by the coil? 2. Relevant equations Φ=BAN 3. The attempt at a solution I did 200*(8*10^-4)(0.06-0.02) and gotthe answer i got for this problem was 6.8*10^-3 Teacher said it was wrong. Did i mess up somewhere? i calculated it twice and got the same answer so im not sure how the answer would be wrong?