An iron ring of mean length of 1.2m and cross-sectional area of 0.005 m² is wound with a coil of 900 turns. If a current of 2 amp in the coil produces a flux density of 2T in the iron ring, calculate: i) ii) iii) iv) The mmf Total flux in the core Magnetic field strength Relative permeability of the core. [ 1800AT, 6mwb, 15 AT/m, 637 ]

An iron ring of mean length of 1.2m and cross-sectional area of 0.005 m² is wound with a coil of 900 turns. If a current of 2 amp in the coil produces a flux density of 2T in the iron ring, calculate: i) ii) iii) iv) The mmf Total flux in the core Magnetic field strength Relative permeability of the core. [ 1800AT, 6mwb, 15 AT/m, 637 ]

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.

Question

An iron ring of mean length of 1.2m and cross-sectional area of 0.005 m² is wound with a
coil of 900 turns. If a current of 2 amp in the coil produces a flux density of 2T in the iron
ring, calculate:
i)
ii)
iii)
iv)
15
The mmf
Total flux in the core
Magnetic field strength
Relative permeability of the core.
[1800AT, 6mwb, 15 AT/m, 637 ]

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