3. A coil of 1000 turns is wound on the central limb. The magnetic path from A to B by way of outer limbs have a mean length of 100cm each and an effective cross – sectional area of 5 sqcm. The central limb is 25cm long and 5sqcm cross – sectional area. The air gap is 0.8cm long. Calculate the current flowing through the coil to produce a flux of 0.3mWb in the air gap. The relative permeability of the core material is 800 (neglect leakage and fringing) -B-

3. A coil of 1000 turns is wound on the central limb. The magnetic path from A to B by way of outer limbs have a mean length of 100cm each and an effective cross – sectional area of 5 sqcm. The central limb is 25cm long and 5sqcm cross – sectional area. The air gap is 0.8cm long. Calculate the current flowing through the coil to produce a flux of 0.3mWb in the air gap. The relative permeability of the core material is 800 (neglect leakage and fringing) -B-

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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Similar questions

For the circuit shown in Figure:a. Determine the reluctance values and show themagnetic circuit, assuming that μ = 3,000μ0.b. Determine the inductance of the device.c. The inductance of the device can be modified bycutting an air gap in the magnetic structure. If a gapof 0.1 mm is cut in the arm of length l3, what is thenew value of inductance?d. As the gap is increased in size (length), what is thelimiting value of inductance? Neglect leakage fluxand fringing effects.
To a magnetic core, with a relative permeability of 2100, a current I1 of 1 A and a current I2 of 2 A are applied, where the number of turns of the winding is 1000. The depth of the magnetic core is 20 cm. take into account that the bounded measurements are given in centimeters. The air gap shown in the figure is 0.2 cm and has an effective area equivalent to 1.1 times the cross-sectional area of the core. Determine:a) The equivalent circuit with sources and reluctance (Graph it)b) The magnetic flux of the central columnc) Magnetic induction at point Ad) Explain what would happen if the flow of current I1 is reversed
a. If the material is the ideal material, N1I1 = 200, NIA = 100 and NIB = 150 If I am ampersand, what is the flux density in the middle of the air gap? okay? Calculate by drawing the magnetic circuit. b. If the material is not the ideal material (µr), the core material of each winding Find the inductance in terms of parameters c. What is mutual inductance between windings? D. Check the magnetic equivalent circuit of this system that there are no leakage fluxes. draw assuming. New magnetic with leakage fluxes in mind How about a circuit, draw?
3. A magnetic circuit consists of a toroidal silicon sheet steel with relative permeability ?? of150, and a small air gap.A current ? flows through 200 turns of wire wrapped around the toroid.The magnetic flux of the circuit is 5 × 10−9 ??. The total length of the circuit is 0.8 m, and thecross-sectional area of the toroid is10−4?2. The length of the air gap is 0.07 m. Findi. the total reluctance and inductance of the circuitii. magnetomotive force and hence the current.?0 = 4? × 10−7?/M
An ideal core (assume relative permability is infinity) with a crossectional area of 12 cm2is excited via10A current flowing through coil with 200 turns. On the one side of the coil, a 1 cm long paramagneticmaterial (µr=1) is placed. Calculate the magnetic field on paramagnetic material
A toroid (ring shaped) magnetic core is wounded by a coil having 250 turns. The inner (ri) and outer radii (rd) are 20cm and 25cm, respectively. The toroidal core has a circular cross section (S). For a coil current of 2.54 A, calculatea. The magnetic flux density along the mean radius of the core (l).b. Flux in the core.c. Flux linkage of the coil.d. Reluctance of the toroid core.e. Magnetic permeability of the material.f. The inductance of the coil, under the assumption that the flux density within the core is uniform and same at every point of the core.
A toroid (ring shaped) magnetic core is wounded by a coil having 250 turns. The inner (ri) and outer radii (rd) are 20cm and 25cm, respectively. The toroidal core has a circular cross section (S). For a coil current of 2.54 A, calculatea. The magnetic flux density along the mean radius of the core (l).b. Flux in the core.c. Flux linkage of the coil.d. Reluctance of the toroid core.e. Magnetic permeability of the material.f. The inductance of the coil, under the assumption that the flux density within the core is uniform and same at every point of the core.H
Find the numerical values of the magnetic field created by the L length wire piece with constant I current flowing through it at the P points shown in the figures below (I=10A, a=20cm)
Using Bio-Savart's law, determine the magnetic flux density produced by a single turn ofa current carrying loop. Consider ONLY the magnetic field along the axis of the loop.Assume that the radius of the loop is 'a', the current carried by the loop is 'l'. Otherparameters retain the standard units.
Q)In steady magnetic fields, can we define a potential function based on the current distribution from which the magnetic fields may be easily determined? Justify your answer.
A coil has N=25 turns. The toroid on which the coil is wound has ID=5 cm and OD = 5.5 cm. The geometryresults in a mean path length of 0.165 meters and a cross sectional area of 4.91 micrometer squared. What equation is used for calculating the field strength (also called intensity) H along the mean-path length within the toroid? Calculate the Reluctance in the path of flux lines if Mr is 500.What is the resulting Inductance?
A 4pole lap wound armature when driven at 600rpm generates 120V. if the flux per pole I 25mWb, find the number of armature conductors.