FEATURE ARTICLE Fields Mode Fig. 10 Fig. 7 Fig. 11 Fig. 8 Fig. 12 Fig. 9 Although circuit parameters mode seems the obvious choice for solving this problem, the model is also solved in Fields mode. From Faraday's Physics global set up, fields mode is selected to solve the problem. The results obtained are not much different from circuit parameters mode. 12 Magnetics Business & Technology * Since there is only one power source in this model, the real part of the power loss in the block must also be the real power loss pulled from that source. Hence, a power loss calculation on the plate enables us to compute the resistance seen by the coil by using formula P=I2 R. The plots below show results from a Fields mode solution with 1 A at a phase of 0 (to simplify calculations) in the coil. L is recorded from flux linkage using formula L=N*Φ/I and R is recorded from "Power loss". Figure 6-9 shows change in inductance and resistance values in the model with and without defect. Again, the bigger plate with more elements shows more consistent results with measured data as compared to the smaller plate with lesser elements. November/December 2019 www.MagneticsMag.comhttp://www.MagneticsMag.com