Oh, I am not sure if I'm in the same class or not and my problem is that I DON'T know what the correct answer is BUT I do know mines is the wrong one.
Thanks for the help let me think/try it now.
How do you solve for a?
I did the following:
induced emf e = - N dφ/dt
flux φ = B * A ( A is the area of loop)
e = - 1 * d( B * 0.5m^2 ) /dt
-12 = - 0.05 * dB/dt
dB/dt = 12/.05 = 240 T/s
Why is this incorrect? It asks for magnitude so sign shouldn't matter anyways.