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A magnetic circuit with a single air gap is shown in Fig. 1.27. The core dimensions are Cross-sectional Area Ac = 3.5 cm² Mean core length le Gap length g = 2.4 mm N = 95 turns Assume that the core is of infinite permeability (µ → ∞) and neglect the effects of fringing fields at the air gap and leakage flux. (a) Calculate the reluctance of the core Rc and that of the gap Rg. For a current of i = 1.4 A, calculate (b) the total flux ø, (c) the flux linkages A of the coil, and (d) the coil inductance L. = 25 cm

A magnetic circuit with a single air gap is shown in Fig. 1.27. The core dimensions are Cross-sectional Area Ac = 3.5 cm² Mean core length le Gap length g = 2.4 mm N = 95 turns Assume that the core is of infinite permeability (µ → ∞) and neglect the effects of fringing fields at the air gap and leakage flux. (a) Calculate the reluctance of the core Rc and that of the gap Rg. For a current of i = 1.4 A, calculate (b) the total flux ø, (c) the flux linkages A of the coil, and (d) the coil inductance L. = 25 cm

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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A magnetic circuit with a single air gap is shown in Fig. 1.27. The core dimensions are Cross-sectional Area Ac Mean core length le = 25 cm Gap length g 3.5 cm2 = 2.4 mm || N = 95 turns Assume that the core is of infinite permeability (µ → ∞) and neglect the effects of fringing fields at the air gap and leakage flux. (a) Calculate the reluctance of the core Rc and that of the gap Rg. For a current of i = 1.4 A, calculate (b) the total flux ø, (c) the flux linkages 2 of the coil, and (d) the coil inductance L. Core: mean length l + o area Ac, permeability u Coil: N turns Air gap Figure 1.27 Magnetic circuit for Problem 1.1.
Transcribed Image Text:A magnetic circuit with a single air gap is shown in Fig. 1.27. The core dimensions are Cross-sectional Area Ac Mean core length le = 25 cm Gap length g 3.5 cm2 = 2.4 mm || N = 95 turns Assume that the core is of infinite permeability (µ → ∞) and neglect the effects of fringing fields at the air gap and leakage flux. (a) Calculate the reluctance of the core Rc and that of the gap Rg. For a current of i = 1.4 A, calculate (b) the total flux ø, (c) the flux linkages 2 of the coil, and (d) the coil inductance L. Core: mean length l + o area Ac, permeability u Coil: N turns Air gap Figure 1.27 Magnetic circuit for Problem 1.1.
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