Hello everyone, I'm missing this problem and i aksed the professor if i was doing it wrong and he said, nope it looks like you just use that equation and solve for I. Here is the equation: M = IA, where M stands for the moment; A stands for Area. So you know the Moment is 1022 J/T. You also know the area is 4PIr^2; A = 4PI(3200E3)^2; A = 1.29E14; I = M/A I = (8E22)/1.29E14 = 620155038.8 = 6.2E8 Am i doing this right? It says its wrong! The magnetic dipole moment of Earth is 8E22 J/T. Assume that this is produced by charges flowing in Earth's molten outer core. If the radius of their circular path is 3200 km, calculate the current they produce.