4.3 A ferromagnetic circuit has a magnetic core with infinitely high relative perme- ability. It has three legs, and air gaps of 2 mm and 1 mm are cut from sections A and C, respectively, as shown in Fig. 4.32. A coil is wound on the center leg B, and it has 200 turns and a resistance of 2.5 . The magnetic core has a 5 x 5 cm uniform cross-sectional area. A DC voltage is applied to the coil. HET 2 mm 3 HT 1 mm FIGURE 4.32 Magnetic circuit of Problem 4.3. a. Determine the voltage that will produce a flux density of 0.75 T in the right leg C, which contains the 1-mm air gap. b. Find the magnetic flux in the other two legs of the core.

4.3 A ferromagnetic circuit has a magnetic core with infinitely high relative perme- ability. It has three legs, and air gaps of 2 mm and 1 mm are cut from sections A and C, respectively, as shown in Fig. 4.32. A coil is wound on the center leg B, and it has 200 turns and a resistance of 2.5 . The magnetic core has a 5 x 5 cm uniform cross-sectional area. A DC voltage is applied to the coil. HET 2 mm 3 HT 1 mm FIGURE 4.32 Magnetic circuit of Problem 4.3. a. Determine the voltage that will produce a flux density of 0.75 T in the right leg C, which contains the 1-mm air gap. b. Find the magnetic flux in the other two legs of the core.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter29: Dc Generators

Section: Chapter Questions

Problem 1PA: You are working as an electrician in a large steel manufacturing plant, and you are in the process...

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