Lorentz force equation shows us that current is proportional to the force. Is it safe to assume that the force generated by an AC current at 60Hz will always have the same frequency? In other words, as the current increases and deceases (sinusoidal) the force will follow the same pattern at the same rate. Would this be true if the current flow had a circular shape or any non-linear shape? The reason I ask is because Maxwell is giving me torque plots of frequencies twice the frequency of the input current. I find this odd.