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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
20.18Â Â A ferromagnetic material has a remanence of 1.0 tesla and a coercivity of 15,000 A/m. Saturation is achieved at a magnetic field
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Figure 20.29Â Â Â Initial
magnetization
B-versus-H curve for
an iron-silicon alloy.             1.4
Magnetic field strength, H (oersteds)
0.2Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0.4Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0.6
15,000
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1.2
Â
Â
1.0
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0.8
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0.6
Â
0.4
Â
0.2
Â
0.0
Â
10,000
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Â
Â
Â
Â
5,000
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Â
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Â
0
0Â Â Â Â Â Â Â Â Â Â Â Â 10Â Â Â Â Â Â Â Â Â Â Â 20Â Â Â Â Â Â Â Â Â Â Â 30Â Â Â Â Â Â Â Â Â Â Â 40Â Â Â Â Â Â Â Â Â Â Â 50Â Â Â Â Â Â Â Â Â Â Â 60
Magnetic field strength, H (A/m)
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strength of 25,000 A/m, at which the flux density is 1.25 teslas. Using these data, sketch
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