Hello icellb1,nThank you for your reply. Apologies for the late reply, was busy with my examinations. nI did a simulation to measure inductance of the core. Followed your instructions to obtain R,L via the matrix tab. I used the inductance formula, L=[(N^2)(Ae)(Ur)(Uo)]/Le to verify with my simulated L results but the value do not tally. N=10, Ae=4x10^-4 m^2, Le=0.4m, Ur=3300, Uo=4pix10^-7. Unsure if I have did it correctly, are you able to verify if my simulations was done proper? Thank you in advance!nn