A ferromagnetic core with a relative permeability of 1500 is shown in the given figure. The dimensions are as shown in the diagram, and the depth of the core is 5 cm. The air gaps on the left and right sides of the core are 0.050 and 0.070 cm, respectively. Because of fringing effects, the effective area of the air gaps is 5 percent larger than their physical size. If there are 300 turns in the coil wrapped around the center leg of the core and if the current in the coil is 1.0 A: (a) What are the flux values for the left, center and the right legs of the core? (b) What is the flux density in each air gap? 30cm 30 cm 7 cm 0 urms 0.05 cm- 30 cm -0.07 cm Core depth = 5 cm

A ferromagnetic core with a relative permeability of 1500 is shown in the given figure. The dimensions are as shown in the diagram, and the depth of the core is 5 cm. The air gaps on the left and right sides of the core are 0.050 and 0.070 cm, respectively. Because of fringing effects, the effective area of the air gaps is 5 percent larger than their physical size. If there are 300 turns in the coil wrapped around the center leg of the core and if the current in the coil is 1.0 A: (a) What are the flux values for the left, center and the right legs of the core? (b) What is the flux density in each air gap? 30cm 30 cm 7 cm 0 urms 0.05 cm- 30 cm -0.07 cm Core depth = 5 cm

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter25: Surge, Spike, And Lightning Protection

Section: Chapter Questions

Problem 10RQ: In reference to the load, how are capacitors connected to help prevent voltage spikes and surges?...

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Antenna Array

An antenna array is a group of antennas joined together and arranged in a regular pattern to form a single antenna capable of producing radiation patterns that individual antennas cannot. As the antennas are constructed as an array, sufficient spacing and phase must be given.

Question

A ferromagnetic core with a relative permeability of 1500 is shown in the given figure. The dimensions are as shown in the diagram, and the depth of the core is 5 cm. The air gaps on the
left and right sides of the core are 0.050 and 0.070 cm, respectively. Because of fringing effects, the effective area of the air gaps is 5 percent larger than their physical size. If there are 300
turns in the coil wrapped around the center leg of the core and if the current in the coil is 1.0 A:
(a) What are the flux values for the left, center and the right legs of the core?
(b) What is the flux density in each air gap?
7 cm
-30 cm-
7 em
30 ст
7 cm
30 cm
-0.07 cm
300 turns
0.05 cm-
7 сm
Core depth = 5 cm

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