Example: the various dimensions of a magnetic circuit are shown in the following figure. There are 66 teeth and slots. The axial length of pole and armature is 0.35m and the corresponding dimension for yoke is 0.45m. The effective air-gap length may be taken as 5mm. The rotor Bay/Bmax is equal to the pole-arc/pole pitch. The flux = 0.075 webers. Calculate the excitation m.m.f. required. Suppose the number of poles is 2 司 27 IS 12 ☑ 104 as 45