Q1. Figure Q1(a) shows a core has the following parameters:- Laminated sheet steel B(T) 16 14 12 10 0.8 06 04 0.2 O 0 50

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Q1 Figure Q1 A Shows A Core Has The Following Parameters Laminated Sheet Steel B T 16 14 12 10 0 8 06 04 0 2 O 0 50 1 (60.69 KiB) Viewed 42 times

Q1. Figure Q1(a) shows a core has the following parameters:- Laminated sheet steel B(T) 16 14 12 10 0.8 06 04 0.2 O 0 500 turns Cast iron Air gap 500 1000 1500 2000 Lengths: Isheet steel = 0.04m; least iron = 0.2 m; Lair gap = 0.001m Cross sectional area: 4= 0.2 x 10³ m² B-H Curves Figure Q1(a) 3000 Figure Q1(b) Sheet sted Cast steel Cast iron 3500 4000 4500 5000 H(Alm) If the magnetic flux inside the core is 0.4 x 10 Wb and assume all flux is confined to the core. (a) Determine the flux density in sheet steel (Bsteet) and cast iron (Biron) sections; (b) Refer to the B-H curves of Figure Q1(b), find the magnetic field strength in sheet steel (Hsteet) and cast iron (Hiron); (c) Neglects fringing at the air gap, determine the flux density (Bgap) and magnetic field strength (Hgap) in the air gap; (d) Calculate the amount of the current (/) passing through the coil. (6 marks) (6 marks) (6 marks) (7 marks)