- #1
superslow991
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Homework Statement
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?
Homework Equations
Φ=BAN
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 I am not sure how the answer would be wrong?