(b) A two-legged core made of steel is shown below, together with its magnetization curve. The winding (Ni) on the left leg of the core has 600 turns, and the

winding (N2)on the right leg of the core has 200 turns. The coils are wound in the directions shown in the figure. The dimensions of the core are as shown, and the currents are i 0.5 Aand i = 1.00 A. (i) How much total flux dot is produced in the core by the specified currents? (ii) What is the relative permeability 4, of the core under these conditions?