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Posted: **Sun May 15, 2022 5:55 pm**

: Q5 10 Marks A Series Magnetic Circuit Is Shown Below The Relative Permeability For The Steel Is Jr 1822 A Flux Of 1 (28.41 KiB) Viewed 33 times

: Q5 10 Marks A Series Magnetic Circuit Is Shown Below The Relative Permeability For The Steel Is Jr 1822 A Flux Of 2 (28.41 KiB) Viewed 33 times

: Q5 10 Marks A Series Magnetic Circuit Is Shown Below The Relative Permeability For The Steel Is Jr 1822 A Flux Of 3 (13.39 KiB) Viewed 33 times

: Q5 10 Marks A Series Magnetic Circuit Is Shown Below The Relative Permeability For The Steel Is Jr 1822 A Flux Of 4 (9.25 KiB) Viewed 33 times

Q5) [10 Marks A series magnetic circuit is shown below. The relative permeability for the steel is jr = 1822. A flux of 2.5 x 10 Wb is established in the core by a 200 turns coil. All cast steel Area (throughout 15 x 10 m Air gap 000 N = 200 tums stefan - 100 x 10m 2 x -m a) Draw the equivalent magnetic circuit. [1 mark] b) Calculate the flux density, B. [1 mark] c) Calculate the steel (core) permeability. He 11 mark] d) Calculate the magnetic field intensity of steel, H. 12 marks

e) Caleulate the magnetic field intensity of airgap, H. 12 marks] ) Determine the total magnetomotive force (MMF). [1 mark] g) Find the value of current required to establish the magnetic flux, 1.12 marks]

07) Draw a single-phase practical transformer under load showing clearly all the fluxes. 14 Marks