Answered: 2. An air-gap between two pole pieces…

2. An air-gap between two pole pieces is 20 mm in length and the area of the flux path across the gap is 5 cm. If the flux required in the air-gap is 0.75 mWb find the m.m.f. necessary.

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...

See similar textbooks

Related questions

Q: For operation at 60 Hz and a given peak flux density, the core loss of a given core is 1W due to…

Q: A two-legged magnetic core with an air gap is shown in figure below. The depth of the core is 5 cm,…

A: The given magnetic core and graph are shown below:

Q: A mmf is supplied by a current of 1 A through 100 turns. The magnetic unit consists of a steel core…

A: Reluctance =length premeability×area And rotal reluctance is the sum of reluctance of air gap and…

Q: Q2(b). Using Ampere's Law, identify Magnetic Flux Density, B in all regions where p is the radial…

A: Given data Inner radius = a Outer radius = b Radial distance = ρ

Q: For the series-parallel magnetic circuit shown in Figure 1, draw the equivalent magnetic circuit and…

A: The given circuit is shown below: ϕg=2×10-4 Wb

Q: A cast steel electromagnet has an air gap of length 2 mm and an iron path of length 30 cm. Find the…

Q: Explain the hysteresis that can be found in materials due to force, magnetic and electrical…

Q: D flux density and di differential distance are perpendicular to each other. In such a case, find…

Q: Problem 1 In the following magnetic circuit, N = 1000; µ. = 1230. As shown in the figure, for the…

A: In every magnet, there will be a north and south pole. For a permanent magnet that has north and…

Q: Consider the magnetic circuit in Figure. Assuming that the core u= 1000uo has a uniform cross…

Q: а) Define the Ampere's Law in terms of the magnetic flux density B using equation and briefly…

Q: Q3. a) Ferromagnetic materials are used widely in the construction of electrical machines, such as…

A: Ferromagnetic materials are those materials that show an automatic magnetic field at the atomic…

Q: The magnetic circuit shown in Figure has an mmf of 500 A. Part 1 is cast-steel with 1₁ = 330 mm and…

Q: Consider the magnetic circuit in Figure. Assuming that the core u= 1000uo has a uniform cross…

Q: Answer the following questions using formulas, figures, and diagrams. (a) What is coenergy in…

A: a) Coenergy is a energy which to use for theoretical analysis of energy storing and energy…

Q: EN1085 Q3. a) Ferromagnetic materials are used widely in the construction of electrical machines,…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: A magnetic pole face has a rectangular section having dimensions 200 mm by 100 mm. If the total flux…

A: Given data: Total flux: 150 µWb

Q: Q3) a point charge of 2uc at origin and a sphere of radius Im with a uinform charge distribution pv-…

Q: W Discuss B-H curve of a ferro-magnetic material..

A: In this question we discuss B-H curve of ferromagnetic material.

Q: By referring to Lenz’s Law, with aids of drawing, discuss the induced current process in magnetic…

A: According to Lenz's law, the induced current opposes the changing magnetic flux through the loop. As…

Q: Consider the magnetic circuit in Figure. Assuming that the core u= 1000uo has a uniform cross…

Q: Derive the equation for rms core flux of ideal ac magnetic circuit using Ohm's of magnetic circuits.…

A: Consider the magnetic circuit having the N turns carries the current I as shown below, From the…

Q: In figure, a magnetic flux of F is generated with a constant current of i. The core material used…

A: According to question: a) The reluctance of air gap is calculated as…

Q: The saturation curve of a particular core material shows that at a magnetic field intensity of 1250…

Q: A magnetic pole face has a rectangular section having dimensions 200 mm by 100 mm. If the total ﬂux…

A: a) The flux of the pole is 100µWb The dimension of the pole is 200 mm by 100 mm The flux density is…

Q: Required mathematical expression of the relationship between magnetic flux density and magnetic…

A: To explain the relationship between magnetic flux density and magnetic field strength

Q: An electromagnet has an air gap of 3 mm length and the flux density in the gap is 1.257 T. Find the…

Q: A coil has 200 At with a flux of 25 µWb in the iron (a) Calculate the reluctance. If the reluctance…

Q: The hysteresis and eddy current losses of a DC Machine running at 1000 rpm are 250 watts and 100…

A: In this question we have given hysteresis and Eddy current loss at given speed...We have to find out…

Q: D flux density and dl differential distance are perpendicular to each other. Such a in case ? ⃗ find…

Q: The B-flux is determined to be 52.35 mWb. If the material that surrounds this flux has a…

Q: A uniform flux density of 1 T is perpendicular to the plane of a five-turn circular coil of radius…

A: Given data, The value of uniform flux density is B = 1 T. The value of radius is R = 10 cm = 0.1 m.…

Q: Core - PM Ntums In the system in the figure, magnet NDFEB, Br31.25 T, Hc=-900 kĀ/m, N=100, i=20 A,…

A: According to guidelines we need to solve only the first three sub-parts. According to the…

Q: In figure, a magnetic flux of F is generated with a constant current of i. The core material used…

A: According to company policy we are allowed to provide solution for only 3 sub parts of one question.…

Q: Write and explain the three groups of materials according to their magnetic properties? What kind of…

Q: A cast steel electromagnet has an air gap of length 2 mm and an iron path of length 30 cm. Find the…

Q: A magnetic circuit with three airgap is given below. Assume that the core has infinite permeability…

A: As per our guidelines we will solve the first three parts .If you want the remaning kindly repost…

Q: The toroidal (circular cross section) core shown in Figure below is made from cast steel. (a)…

A: Given toroidal diagram is - Given that material is cast steel so relative permeability is 4000.

Q: Draw the magnetization curve of magnetic materials for varying dc supply (0 to Vm), Ac supply, show…

A: We know that,B= μ Hwhere,B- Magnetic field intensityH- Magnetic flux densityμ- Permeability The…

Q: The magnetic circuit shown in the figure has dimensions Ac = Ag = 9 cm², g = 0.050 cm, 1 = 30 cm,…

Q: Question one: The toroidal (circular cross section) core shown in Figure below is made from cast…

Q: 2. A straight long wire is carrying a current of 1000 A. Find the flux density at a point 1 ft from…

Q: a) A magnetic pole face has a rectangular section having dimensions 200 mm by 100 mm. If the total…

Q: For the toroidal core given below assume uniform flux intensity H over the core cross-section. Also,…

A: First find reluctance of the core. Coil inductance = N2/reluctance.

Q: How are carrier concentration and mobility calculated measured for materials? 2. What is the Gouy’s…

A: 1.The carrier concentration for majority carrier is equal to the number of free carriers added by…

Q: An air-gap between two pole pieces is 20 mm in length and the area of the flux path across the gap…

A: Given values are - Lengthl=20mm=20×10-3mAreaA=5cm2=5×10-4m2Fluxϕ=0.75mWb

Q: Electric flux that streams away symmetrically from a point charge and is coincident with the…

A: Electric flux that streams away symmetrically from a point charge and is coincident with the…

Q: (b) / Discuss B-H curve of a ferro-magnetic material

Q: have an inductance of 12.5 H when operating at a flux density 3 T, the corresponding relative…

Question

No.2

4TX10×1
from which, magnetic field strength, H = HoH.
= 262600 A/m
= 3939 A
Magnetomotive force, m.m.f. = H x 1 = 262600 × 15×10
2. An air-gap between two pole pieces is 20 mm in length and the area of the flux path across the
gap is 5 cm . If the flux required in the air-gap is 0.75 mWb find the m.m.f. necessary.
Ф
В
ВА
Ф
A Ho
for air, from which, H= Ho
0.75x10-3 20x10-3

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

3- A magnetic core with an air gap is shown in below Figure. The depth of the core is 3 cm, the length of the air gap in the core is 4 cm, and the number of turns on the coil is 100. How much current is required to produce total flux of 0.00052 Weber? (H= 2000, Ho=4.n107). 6 cm 20 cm N = 100 4 cm = lg 6 cm 6 cm 18 cm 12 cm 18 cm 6 ст Depth = 3 cm
B. For the following magnetic circuit, the flux passing through the core is 1.32 mWb, the cross section of the core is 3 cm by 4 cm, the laminated section has a stacking factor of 0.9, and the gap is 1 mm. Determine the flux density in each section. Neglect fringing d N turns Cast iron Air gap Laminated sheet steel
A ring of ferromagnetic material has a rectangular section. The inner diameter is 15 cm.The outer diameter is 24 cm. And the thickness is 5 cm. There is a coil of 500 turns wound onthe ring. When the coil has a current of 10 A, the flux in the core is 0.0007 Wb. Theaverage length of the ring is Ln=0.66m Determine:a) The magnetomotive force.b) The intensity of the magnetic field and the flux density.c) Reluctance, permeability and relative permeability.
A magnetic ring has reluctance of 1.675 × 10⁰ AT weber. The flux to be produced by the coil is 800 x 10 webers, then the AT required for the m.m.f. will be
The applied MMF to a simple magnetic circuit is 350AT. It was found that the resulting magnetic field denstiy is 0.7 Wb/m². The average length of this magnetic circuit is 1.64ft and its cross sectional area is 4cm². What is the reluctance (in AT/Wb) of the magnetic material of the core?
A magnetic circuit with a cross-sectional area of 20 cm? is to be operated at 50 Hz from a 120 V rms supply. The number of turns required to achieve a peak magnetic flux density of 1.8 T in the core is
How many ampere-turn are required to produce a field intensity of 4000 Ampere-turn/m in a magnetic circuit of length 4 mm ?
A rectangular coil of wire has a length of 3 cm and a width of 4 cm. It is in a 0.004 T magnetic field. What is the magnetic flux through the coil if the face of the coil is parallel to the B-field lines? What is the flux if the angle between the face of the coil and the magnetic field is 75°?
A magnetic circuit has 150 turns-coil, the cross- sectional area 5 x 10-4 m2 and the length of the magnetic circuit 25 x 10-2 m. What are the values of magnetic field intensity and relatíve permeability when the current is 2 A and total flux is 0.3 x 10-3 Wb? (a) 1200 AT/m and 397.9 (b) 300 AT/m and 500 x 10-6 (c) 300 AT/m and 397.9 (d) 1200 AT/m and 500 x 10-6
A coil that con sists of 450 windings is wound aroundabakelite ring. The mean diameter of the ring is 100 mm and the diameter of the bakelite core is 20 mm. The currentthrough the coil is 3 A. Determine: 1.1 a) the field stren gth b) the flux den sity c) the total flux A ringhas two halves. The onehalf is made from Cast iron, while the other is made from Cast steel. The two halves are held 1 mm apart with the aid of a paper disc. The cross-section al area and mean circumference of the ringis 345 mm? and0.6 m respectively. Therelative permeability of cast iron is 2400, while that of cast steel is 600. The ring has a coil with 200 win dings. The currentflow through the coil causes a flux den sity of 0.48T. 1.2 Calculate the: a) mmi b) currentflow Ignore the effects of fringing andleakage.
An iron circuit with a small0.75 mm air gap is shown in Figure 1. A 6000 turn coil carries a current I = 18 mA which sets up a flux within the iron and across the air gap. The cross section of the iron is a consistent 0.8 cm2, and the mean length of the flux path is 0.15 m. a) Redraw the magnetic circuit using schematic symbols of an electric circuit with reluctance in each part of the circuit. b) State's Ohm's Law for magnetic circuit. c) By neglecting the effect of fringing, calculate the reluctance of the circuit. d) Find the flux within the core. N = 6000 Iron circuit (u, = 800 for iron). Figure 1
Figure 1 shows a ferromagnetic core with a relative permeability of 1850, the depth of the core is 10 cm. The air gap on the core is 0.2 cm with effective area 5 % larger than their physical size due to fringing effects. Given the number of turns N = 500 and current i = 2 x, where x is the last digit of your student ID (example: EEE1705590, then i = 20 A): (a) Find the total reluctance of the core and air gap. [CLO1-PL01:C2] (b) Find the flux density of the air gap. [CLO1-PLO1:C2] 13 cm 23 cm 9 cm 5.6 сm Air gap 31 cm N turns 7 cm Figure 1