a) Given a magnetic circuit as shown in Figure Q1 where its core is cast steel. The center limb has a cross-sectional area of 800mm2 and the other side limbs have a cross sectional area of 500mm2. The effective air gap length, lac is Imm, core length, be = 150mm, ladb = laeb = 340mm . A coil of 400 turns is wound on the center limb. Neglect any magnetic leakage and fringing effect. Used the B-H curves Given in Q2. i. ii. Draw the equivalent Ampere's Circuital Law model and label the components for magnetic circuit in Figure Q1 Determine the m.m.f. and current required to establish a flux of 1.048 x 10-3 Wb in the center limb. a" b Figure Q1: Magnetic circuit