1. The problem statement, all variables and given/known data http://img520.imageshack.us/img520/1843/picture7j.png [Broken] 2. Relevant equations for values 50 turn, 4.0 cm diameter, R = 0.50, surrounding 2.0 cm diameter, 20cm long, 200 turns, 60Hz through I_sol=(0.50A) sin(2πft) the solution would be: http://img403.imageshack.us/img403/6412/picture2xwo.png [Broken] http://img22.imageshack.us/img22/7338/picture3cce.png [Broken] 3. The attempt at a solution tried it a couple of times and I couldn't get a correct answer. Please help!