Answered: How much current is required to produce…

How much current is required to produce a flux of 0.012 Wb, in the core? b) What is the relative permeability of the core for that current? c) What is the reluctance

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.1MCQ: The Ohms law for the magnetic circuit states that the net magnetomotive force (mmf) equals the...

See similar textbooks

Related questions

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 magnetic core has a mean length of 20 cm, a cross-sectional area of 4 cm2, and a relative…

Q: Find the numerical values of the magnetic field created by the L-length wire piece with a constant I…

Q: An iron-cored choke is designed to have an inductance of 20 H when operating at a flux density 1 T,…

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: Below is the magnetic circuit with two windings and two air gaps. The cross-sectional area is…

A: To find the magnetic flux density of air gaps, Bg=ϕgAg Bg=Magnetic flux density in Tϕg=Magnetic flux…

Q: A magnetic core with an airgap is shown in the figure below. The depth of the core is 7 cm, the…

A: reluctance = length of air gapμ0Area of airgap Given length of air gap is 0.04 cm and area is…

Q: Problem 6.6 The approximate electromagnetic structure of a reluctance force nail gun is shown. The…

A: From the above question, the given data is described below: g0=0.5 mm bearing thicknessx0=9.5 cm…

Q: Given a common magnetic core whose length is 100 cm, its cross-sectional area is 25 cm square. The…

Q: The magnetic structure shown in the figure is built with a material whose magnetization curve is…

Q: A ferromagnetic core with three legs is shown in Figure Q1(c). The relative permeability of the core…

A: Given Relative permeability =1200 Width=5cm MMF=600A-T Area of air gap is 4% more than physical…

Q: A magnetic circuit consists of silicon steel of 3000 permeability and an air gap. The length of the…

A: MMF = (MMF)core + (MMF)air = B/HoHr(lg)core + B/Ho(lg)air = Փ/HoA [(lg)core/Hr +…

Q: (b) Figure Q3(b) shows a magnetic circuit with two different material, with a mean cross- sectional…

Q: An iron ring of mean length 50 cms has an air gap of 1 mm and a winding of 200 turns. If the…

Q: A solenoid has 250 turns, Solve for the magnetomotive force when the current is 0.12 Amperes, a. in…

Q: Core centerline b) Consider a magnetic circuit using an iron toroid. The mean diameter of the toroid…

Q: QI- The magnetic circuit shown is made of a cast-steel and has a coil of 1000 turns on its center…

A: It is given that: N=1000 turnsthickness of core=5cmmean length of magnetic paths…

Q: A magnetic core made up of annealed sheet steel has the dimension as shown in the figure. The cross…

A: First we will draw the magnetic equivalent circuit for the given magnetic circuit. Then we will…

Q: a. Find the current I required to establish a fluxφ = 2.4 × 10−4 Wb in the magnetic circuit…

A: The total flux generated by the current carrying loop is given by: Where, The reluctance due to…

Q: 1.5 Sheet Steel Cast Steel 0.5 Cast Iron 0. 0. 500 1000 1500 2000 2500 Magnetic Field Intensity (H,…

Q: 4. Consider a coil of wire wrapped around an iron core. If the flux in the core is given by the…

Q: The magnetic circuit shown is made of a cast-steel and has a coil of 1000 turns on its center limp.…

Q: he magnetic field H for both r<a and acreb. he "oxternal" inductance per unit of length…

A: -Coaxial cables, commonly called coax, are copper cables with metal shielding designed to…

Q: Example(6): A magnetic circuit containing an air gap is shown in Figure below. With the dimension as…

A: Given data, Ac=Ag=5 cm2=Area of core =Area of air gapg=gap=0.2 cmlc=20 cm=Length of coreN=100…

Q: A toroid (ring shaped) magnetic core is wounded by a coil having 250 turns. The inner (ri) and outer…

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

Q: Figure P3.1 shows the cross-section of an iron core of constant depth 0.5 cm. The core carries an…

A: Note: As per our company guidelines we are supposed to answer ?️only the first 3️⃣ sub-parts. Kindly…

Q: (b) Figure 2 shows a rectangular magnetic core with relative permeability of the core is 4000. The…

Q: We consider a coil constituted of a conducting wire on a circular torus (see Figure below). The…

A: The toroid is a hollow circular ring carrying current-carrying conductors. A magnetic field…

Q: (b) Figure Q3(b) shows a magnetic circuit with two different material. with a mean cross- sectional…

Q: Q1. (a) What is the source of self-inductance and back emf in a current carrying loop? Remember, I…

A: Solution

Q: 5) the relationship between the magnetic flux linkage A and the current i of an electromognetic…

Q: A magnetic circuit consists of a cast steel yoke which has a cross-sectional area of 200 mm? and a…

Q: Q6) A rectangular iron core is shown in Fig 5. Is has a mcan length of magnetic path of 100 cm.…

A: Flux: It is a hypothetical thing. It is a electric line of the forces that passes through a surface.…

Q: The figure below is a top down view of a circular wire coil with rotating clockwise in a uniform…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: A bar of iron is said to be saturated once most of its magnetic molecules are aligned, whereby,…

A: The explanation to all three subparts is as follows.

Q: To a magnetic core, with a relative permeability of 2100, a current I1 of 1 A and a current I2 of 2…

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

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: A solenoid of 100 turns has a length of 75 cm and the radius of 20 cm. A steel rod of circular…

Q: . For the magnetic circuit given below, the distances constituting the mean core path are given in…

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

Q: Q1. Calculate the force of attraction on the armature of the cast steel electromagnet shown below…

A: Given : B=1.2T , Area = 20×10-4 m2gap = 1×103 m = 0.8 mTo find face of the attraction on…

Q: A toroid (ring shaped) magnetic core is wounded by a coil having 250 turns. The inner (ri) and outer…

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

Q: Question # 2: A square magnetic core has a mean path length of 55 cm and a cross sectional area of…

Q: > Figure 1 shows a ferromagnetic core whose mean path length is 40 cm. There is a small gap of 0.05…

A: Given data:Core: lC=40 cm=40×10-2 mAC=12 cm2=12×10-44m2μr=4000μ=μrμo=4000×4π×10-7N=400Air…

Q: (b) Figure 2 shows a rectangular magnetic core with relative permeability of the core is 4000. The…

A: The given information about the magnetic circuit is, Number of turns is N=500. Cross sectional area…

Q: Problem 3. A magnetising force of 8000 A/m is applied to a circular magnetic circuit of mean…

A: Given data : Magnetising Force=8000 A/m Diameter of the circular circuit,d=30 cm =30×10-2m Number…

Q: the total reluctance of the core in A.turns/wb is: none O 45873.5 206901.4 12254.33 486454 O…

Q: 1. A magnetic circuit with a single air gap is shown in Figure below. The core dimensions are: Cross…

A: In this given question we will find reluctance of core and air gap....Also find flux , flux density…

Q: A magnetic flux density of 2.5 sin314t Tesla from the core with a cross section of 40 cm2 wandering.…

A: B=2.5sin314t T A= 40 cm2 N1 = 200 N2 = 45

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

Concept explainers

Type of Magnetic Material

Every material has a unique composition that defines its magnetic behavior. Some materials get attracted towards a magnet and are called magnetic materials. Based on the magnetic properties held by each material, they are classified into different types.

Question

A square magnetic core has a mean length of 43 cm and a cross-sectional area of
120cm2
. A coil of 200 turns of wire is wound around one of the columns of the core, the
which is made of a material whose required magnetic field strength is H=115 Aturns/m.

a) How much current is required to produce a flux of 0.012 Wb, in the core?
b) What is the relative permeability of the core for that current?
c) What is the reluctance?

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

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 3 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

A ferromagnetic core with a relative permeability of 1500 is shown in the following figure. The depth of the core is 5 cm. Because of fringing effects, the effective area of the air gaps is 5 percent larger than their physical size. If there are 300 turns in the coil wrapped around the center leg of the core, and if the current in the coil is 1.25 A, find the magnetic flux and the field density in all three legs of the core, as well as the magnetic flux and flux density in the two air gaps.
A ferromagnetic core is shown below. The depth of the core is 5 cm. The other dimensions of the core are as shown in the figure. Find the value of the current that will produce a flux of 0.003 Wb. With this current, what is the flux density at the top of the core? What is the flux density at the right side of the core? Assume that the relative permeability of the core is 1000. 1. - 10 cm--- - 20 cm - 15 cm 500 tums 15 cm 15 cm [1.21 A, 0.4 T, 1.2 T]
15. A toroidal core with a mean circumference of 100 cm and a cross sectional area of 10 cm2 is wound with 500 turns of wire. What current would be required to generate a flux of 1 mWb in the core. Assume the core has a relative permeability of 800.
Consider a ferromagnetic ring (nucleus) that has a mean circumference of 40 cm, 300coiled copper turns and a sectional area of 5 cm2. A current of 2 is appliedA to winding, producing a flux of 1.5 mWb.Determine the permeability of the core material.Determine the relative permeability of the core material.If the ferromagnetic ring has an air gap of 2 mm. Find the required MMFso that the flux density in the gap is 0.5 T.
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 three-legged ferromagnetic magnetic core with the coil dimensions shown below has a of 500 turns wrapped around the right leg. The core relative permeability is 4000 times, The magnetic flux in the left leg of the core has a value of 40 mWb. The center leg has an air gap of 0.8 mm, its fringing effect is neglected. Draw the corresponding magnetic circuit and find the values of the coil current i, and the flux in each leg of the core. cm 10 cm, 25cm 25 cm 10 cm 10 cm 25 cm 0.8 mm 500 turns 10 cm Core depth = 10 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
5. A toroidal core with a mean circumference of 100 cm and a cross-sectional area of 10 cm2 is wound with 500 turns of wire. What current would be required to generate a flux of 1 mWb in the core. Assume the core has a relative permeability of 800 а. 1.0 А c. 1.5 A b. 2.0 A d. 2.5 A
2. AC-core with a gap of 0.0001m has a coil number of 100 and a current of 10mA. First find the Reluctance of the core given that the Iron core has a negligible reluctance and only the air reluctance contributes to the majority of reluctance. The core has a cross sectional area of 2cm^2. Next find the flux flowing thru the C-core.
A toroidal core with a mean circumference of 100 cm and a cross sectional area of 10 cm² is wound with 500 turns of wire. What current would be required to generate a flux of 1 mWb in the core. Assume the core has a relative permeability of 800. a. 1 A b. 2 A c. 1.5 A d. 2.5 A
Question 1 A ferromagnetic core is shown in Figure 1. The depth of the core is 5 cm. The other dimensions of the core are as shown in the figure. a) Find the value of the current that will produce a flux of 0.005 Wb. b) With this current, what is the flux density at the top of the core? c) What is the flux density at the right side of the core? Assume that the relative permeability of the core is 1000. cm -10 cm-- 20 cm 15 cm 500 turns 15 cm 15 cm Core depth 5 cm Figure 1
1.2 Magnetic Circuits The figure shows a ferromagnetic core whose mean path length is 40cm. There is a small gap of 0.05 cm in the structure of the otherwise whole core. The cross-sectional area of the core is 12 cm², the relative permeability of the core is 4000, and the coil of wire on the core has 400 turns. Assume that fringing in the air gap increases the effective cross-sectional area of the air gap by 5 percent. Mr = 4000 N=400 turns ·25.4m² Il=0.0005m A=0.0012 m² Given this information: a) Find the total reluctance of the flux path (iron plus air gap). b) Find the current required to produce a flux density of 0.5 T in the air gap. c) Qualitatively describe the effect of the air gap on the magnetic circuit.