5. A cast-iron core of the shape indicated below has the following pertinent dimensions: ab = 10 cm and bc = 15 cm. Find the mmf required if the magnetic field intensity in the thinner side is H1= 100 A-turns/m and the thicker side is H2 = 46 A-turns/m. b

A 10-turn ideal solenoid has an inductance of 3.5 mH. When the solenoid carries a current of 2.0 A the magnetic flux through each turn is: O a. 3.5 x 10-4 Wb O b. 7.0 x 10-³ Wb O c. 7.0 x 10-4 Wb O d. 7.0 x 10-2 Wb O e. 0 Wb

Please i need the final answer very urgent

Problem 2: Consider the magnetic core shown in figure P-2 and notice that three sides of the core are of uniform width, whereas the forth side is somewhat thinner. The depth of the core into the page is 10 cm. The coil has 300 turns and the relative permeability of the core is 2500. Determine the current that will produce 50 mWeb flux in the core. I 10cm 20cm Figure P-2 ★ 5cm T 10cm 20cm 10cm