Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Show your complete and detailed solution. Round off your answers to 4 decimal digits and box your final answers.
3. A series magnetic circuit has an iron path of length 50 cm and an air-gap of
length 1 mm. The cross-sectional area of the iron is 6 cm2 and the exciting
coil has 400 turns. Determine the current required to produce a flux of 0.9
mWb in the circuit. The following points are taken from the magnetization
characteristic :
Flux Density (Wb/m²)
Magnetizing Force (At/m)
1.2
500
1.35
1.45
1.55
1000
2000
4500
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Transcribed Image Text:3. A series magnetic circuit has an iron path of length 50 cm and an air-gap of length 1 mm. The cross-sectional area of the iron is 6 cm2 and the exciting coil has 400 turns. Determine the current required to produce a flux of 0.9 mWb in the circuit. The following points are taken from the magnetization characteristic : Flux Density (Wb/m²) Magnetizing Force (At/m) 1.2 500 1.35 1.45 1.55 1000 2000 4500
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