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16. A bar of an iron -silicon alloy having the B-H behavior shown in the Figure...
Problem 1 (30 points) The magnetic circuit shown in Fig. 1 is made of casteel with magnetining curve shown 2. The coil A has 350 turns, and the coil Bhas 150 turns. The two coils are connected in series to a voltage source. The depth of the core is 2 cm. Given the dimensions (in cm) as shown in the fie I and to establish a flux density of 0.6 T in the airp. Determine: a. Reluctance of the magnetic...
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Question 1: (25 marks) A ring of steel has an external diameter of 24cm and a square cross section of 3cm by 3cm, as she m, as shown in Figure 1. A gap of 3mm exists on the ring. A copper bar of 18cm x 3cm x 3cm is fitted inside Titted inside and across the ring with negligible gap. Account for fringing by using the effective area of the air approximated by:...
3. [20 pts] A linear and isotropic magnetic medium with magnetic susceptibility, Xm-Xm(in - phase) +xm (out-of- phase), and permeability in free space, [uo is magnetized by an applied magnetic field intensity, Haypj. The magnetic medium under an externally applied Happl has volume magnetization vector, M and volume current density, Jms (a) [4 pts] Determine the magnetic flux density, B produced from the magnetic medium excited by Happl and write the SI unit. b) 4 pts] Determine the relative magnetic...
☺ Configuration A Configuration B Scenario: Consider a magnetic circuit with a mean length of 0.4 m. A 6x102 turn coil is wound around the left-hand limb. The magnetic circuit is made from silicon steel; core effects may not be ignored. The cross section is uniform and there is a 0.6 mm air gap in the circuit. Find the current required in the coil to give a flux density of 1.40 T in the air gap. The number of turns...
An electromagnet is constructed of 4% Silicon-iron as shown in Figure 6. current 1 cross sectional area of yoke, S N turns sample: cross sectional area,S thickness, t -effective path length, L Figure 5: Electromagnet Sensing Yoke It has magnetic path length L and yoke cross-sectional area S, in order to apply a magnetic field to a sample of a linear magnetic material with a relative permeability, μ, , of 100, The sample is also of area S and fits...
Polling question for information gathering (not for marks): I have access to working with the BH curve in the following format(/s): A. Paper copy. Printed notes or printed BH curve. B. Computer or laptop. C. Tablet D. Mobile phone. MAGNETISATION CURVES 16 1.6 1.4 Hot Rolled 1.4 12 -1.2 1.0 Magnetic flux density, B, Tesla 0.8 0.8 City of the Wind, Johanne Schleifering 06 -0.6 0.4 0.4 0.2 0.2 200 400 600 1400 1600 1800 2000 800 1000 1200 Magnetic...
Magnetic Field. I have no idea how to solve these questions,
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MAGNETIC FIELDS SUMMARY You will measure how the magnetic field, B, produced by a coil varies with the current, I, in the coil. From your measurements, you w calculate the permeability constant Ho. Lastly you w use a magnet to induce a voltage in the coil. THEORY The magnetic field Batthe center of a circular coil (solenoid) of radius R with N turns that carries a current...
- H/500 Question 2. A magnetic circuit in figure is made of silicon steel, for which the B-H relationship is given as B = 2(1 - e 500). The outer legs have 500 turns each. It is required to establish a flux of 3.6 mWb in the air-gap by applying equal currents to both windings. What is the current in each winding? 50 0.4 50 (All dimensions in centimeters)
***current is not given in question***
Question 2B [18 Marks The magnetic circuit shown below (all dimensions in centimeters) is made from silicon steel (B-H curve attached). The magnetic flux density in the middle limb is equal to 1.2 T and the coil consists of 100 turns. a) Calculate the reluctance of each air gap.[4] b) Calculate the amount of magnetic flux in the middle limb. [1] c) Calculate the reluctance of the middle limb.[3] d) Determine the amount of...
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B3. (a) Given the magnetic circuit below: Path P= 50 cm 5A 300 turns coil A= 6 cm Fig. B3(a) (1) Determine the magnetomotive force (MMF) produced by the coil; (3 marks) (ii) Calculate the average magnetic field strength (H) in the ring: (3 marks) (iii) If the relative magnetic permeability (lly) of the ring material is 1200, find the average magnetic flux density (B) in the ring. Given lo =...