1. The problem statement, all variables and given/known data Find B at the center of the 4.3 cm radius semicircle in the figure . The straight wires extend a great distance outward to the left and carry a current I = 6.6 A. _________ _________) That is kind of what the figure looks like. 2. Relevant equations/3. The attempt at a solution So, magnetic field = B B = μₒI/4R = (4π x 10^-7)(6.6) / 4(0.046) = 4.82 x 10^-5 T This was wrong according to the program I use. So since it was a semi-circle I divided in half and also tried 2.4 * 10 ^-5 T. (I also tried 0). Any help on what I'm doing wrong?