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Air gap I Figure 1 A 1000-turn coil is wound on the centre limb of a steel frame as shown on figure1 above. At operating flux densities, the magnetic field intensity in the outer limbs is 500A/m while at the operating flux density the field intensity in the centre (inner) limb is 900A/m. The cross-sectional area of each limb is 15cm?. Length of the centre limb is 25cm, air-gap is 1mm while total outer length(two equal branches) is 50cm. Neglect the effects of magnetic leakage and for an operating flux density of 1T in the central limb:

Air gap I Figure 1 A 1000-turn coil is wound on the centre limb of a steel frame as shown on figure1 above. At operating flux densities, the magnetic field intensity in the outer limbs is 500A/m while at the operating flux density the field intensity in the centre (inner) limb is 900A/m. The cross-sectional area of each limb is 15cm?. Length of the centre limb is 25cm, air-gap is 1mm while total outer length(two equal branches) is 50cm. Neglect the effects of magnetic leakage and for an operating flux density of 1T in the central limb:

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Air gap 12 Figure 1 A 1000-turn coil is wound on the centre limb of a steel frame as shown on figure1 above. At operating flux densities, the magnetic field intensity in the outer limbs is 500A/m while at the operating flux density the field intensity in the centre (inner) limb is 900A/m. The cross-sectional area of each limb is 15cm². Length of the centre limb is 25cm, air-gap is 1mm while total outer length(two equal branches) is 50cm. Neglect the effects of magnetic leakage and for an operating flux density of 1T in the central limb: a. Calculate the relative permeability of the inner and outer limbs b. Determine the current flowing in the coil
Transcribed Image Text:Air gap 12 Figure 1 A 1000-turn coil is wound on the centre limb of a steel frame as shown on figure1 above. At operating flux densities, the magnetic field intensity in the outer limbs is 500A/m while at the operating flux density the field intensity in the centre (inner) limb is 900A/m. The cross-sectional area of each limb is 15cm². Length of the centre limb is 25cm, air-gap is 1mm while total outer length(two equal branches) is 50cm. Neglect the effects of magnetic leakage and for an operating flux density of 1T in the central limb: a. Calculate the relative permeability of the inner and outer limbs b. Determine the current flowing in the coil
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