Question one: The toroidal (circular cross section) core shown in Figure below is made from cast steel. (a) Calculate the coil current required to produce a core flux density of 1.2 tesla at the mean radius of the toroid. (b) What is the core flux? Assume uniform flux density in the core. cm (c) If a 2-mm-wide air gap is made in the toroid 200 tums 10 cm (across A-A"), determine the new coil current required to maintain a core flux density of 1.2 tesla.

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

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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: 2nd - What does induction loading mean?    a) friction load  B) load with effect  NS) loading…

A: Inductive loading means when load is inductor  Inductor takes current to produce work ( store…

Q: 27. A bus bar is supported by insulators that are 36 in. apart. What force is exerted on each…

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

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

A: From the magnetic field intensity for a finite line equation

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: EXAMPLE 6.1A 4pole, wave-wound armature has 720 conductors and is rotated 1 1000 rev/min. f the…

A: Given values are - PoleP=4ConductorsZ=720SpeedN=1000Fluxϕ=20mWb Given that armature is wave wound so…

Q: From a technicians standpoint, how is the stregth of an electromagnet typically varied? a) by…

A: An electromagnet is a type of magnet in which the magnetic field is produced by an electric current

Q: A 4 pole, lap-wound armature has 120 slots and four conductors per slot. Determine its speed if its…

A: Given : In the question they have mentioned a lap wound armature generator circuit.   The number of…

Q: Determine the permeability of the core material. Determine the relative permeability of the core…

A: => Permeability of core is 0.002 H/m and relative permeability is 1591.55

Q: . A thin light insulating rod of length / is free to rotate in a horizontal alane about a vertical…

A: The torque on an object in magnetic field is given by T=M×B, where M is the magnetic moment and B 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: 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: (a) A 6 pole, 2 circuit, wave-connected armature has 250 conductors and runs at 1200 r.p.m. The…

A: The solution is as follows.

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

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Q: A magnetic circuit is made of mild steel arranged as shown below. The centre limb is wound with 500…

A: Given:Flux=1.3mWbTurns,N=500area of outer limb=500mm2area of cental limb=800mm2relative permeability…

Q: 3.21 Consider the magnetic core given in Problem 3.20 and assume that there is a small 0.06cm at…

A: It is given that: CurrentI=5Apermealibility of core =2000depth=10cm

Q: Using the magnetizing characteristics for samarium cobalt given in below figure, a) find maximum…

A: According to the question we have to find the volume required for the samarium-cobalt magnet and the…

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

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

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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: the armature mmf can be -2 reduced by reluctance of the magnetic the circuit in the region of the…

A: The explanation is as follows.

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: a. If the material is the ideal material, N1I1 = 200, NIA = 100 and NIB = 150 If I am ampersand,…

A: from given we have R1=l1μ0 μr A           R2=l2μ0 μr A      Rg=gμ0  A   L1=N2R1 +R2 +RgLA=N2RA…

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

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Q: Question 3 Consider the magnetic circuit of the following figure, Let the cross-section Area Ac…

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Q: tubalor cross- section toroid An ideal toroid with inner radius and outer radius « and carrying a…

A: We know magnetic flux is multiplication of magnetic field density and area.

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

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

A: We are authorized to answer three subparts at a time. Since you have not mentioned which part you…

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

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

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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: A toroid of average radius 10cm and 100 turns per unit length is carrying a current of 5A, calculate…

A: we need to determine the magnetic flux density B inside the toroid.

Q: A toroidal core has an outer diameter of Icm, an inner diameter of 0.5cm and is made from a material…

A: Given: For a toroidal core, Outer radius D=1 cm, Inner diameter d=0.5 cm, Number of turns wound…

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

A:

Q: Start from first principles to prove that: "For a fixed flux density, the volume of the…

A: For a fixed flux density the volume of ferromagnetic core is directly proportional to the energy…

Q: Determine the air gap length of a dc machine from the following particulars: Gross length of core =…

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

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Q: Calculate the current required in the coil of the figure to produce a flux density in the air gap…

A: Note : Unit of H A.V/m is confusing. we assume it as AT/m   B=1.6 H75+H cross sectional area of core…

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

A: In this question we need to find a magnetic flux density .

Q: Given a magnetic circuit with a current 2.6A flowing through 205 turns of wire on a core having a…

A: In a magnetic circuit, The Current, I = 2.6 A The number of turns, N= 205 turns The reluctance, R =…

Q: Consider the magnetic core shown below. The coil wound on the centre limb has 1000 turns. If the…

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

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Q: Consider two wires of length 1m carrying currents i1 = 2A and i2 = 4A with direction indicated in…

A: Here, we have given two wires. the length of these wires are 1m.  The first wire is having the…

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.