QI- The magnetic circuit shown is made of a cast-steel and has a coil of 1000 turns on its center limp. The center limp and each of the side limbs has a width of Scm and the thickness of the core t =5 cm. The means length of magnetic paths LABCD-LAFED= 60 cm, and the length of center limp=30 cm. Determine the current that the coil should carry to produce a flux of 2.5 mWb in the air-gap. Neglect magnetic leakage and fringing. The magnetization curve fore 1.2 steel is given B (lux density) Wb/ 0.2 0.5 0.7 cast- 1.0 by: mm (Amper-turn/ 300 540 650 900 1150 m)

QI- The magnetic circuit shown is made of a cast-steel and has a coil of 1000 turns on its center limp. The center limp and each of the side limbs has a width of Scm and the thickness of the core t =5 cm. The means length of magnetic paths LABCD-LAFED= 60 cm, and the length of center limp=30 cm. Determine the current that the coil should carry to produce a flux of 2.5 mWb in the air-gap. Neglect magnetic leakage and fringing. The magnetization curve fore 1.2 steel is given B (lux density) Wb/ 0.2 0.5 0.7 cast- 1.0 by: mm (Amper-turn/ 300 540 650 900 1150 m)

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

Similar questions

The magnetic structure of Figure Q7 1 has a rerromagnetic core that can be treated as infinitely permeable Air-gap fringing Is negligible Let N= 10 turns, A=02 m and gap length is 0 = 5 x 10 m. The coil is excited by a sinusoidal voltage source that establishes a flux given by p(t) = 0.25stn20t Wb. The resistance of the coil can be neglected Determine the supply voltage, ), the current, (t) and the inductance of the coil, L. %3D Area, A ŁAir Vst) Figure Q7.1. Solutions insert your solutions in the spaces provided below. Give your numerical values to the nearest whole number unless where stated otherwise. Veft) = Volts t) = A. L= H (give your answer correct to 3 decimal places).
Example(6): A magnetic circuit containing an air gap is shown in Figure below. With the dimension as marked, calculate the current in the coil to establish a flux density of 0.6 T in the air gap. The core has the B - H characteristics. Repeat above but correct for fringing and lamination. Consider SF=0.95, FF 1.08 while is as above. 2 mm) A-5cm²
3. Kindly show complete solution so that I can understand. Give the given and what is ask. Thank you
A coil with a material which is having permittivity same as air having number of turns N=500. Current flowing through coil is 4A. Length of material is 2cm with cross sectional area of 10cm2. What is value of magnetic flux.
The cross section of the core of a magnetic circuit with 100 relative permeability is 5 cm2 and the average core length is 25 cm. The magneto motor power of the coil is 1000At and it has 120 turns. What is magnetic core flux?
2. A two-legged core is shown in figure below. The winding on the left leg of the core (N,) has 600 turns, and the winding on the right (N2) has 200 turns. The coils are wound in the directions shown in the figure. If the dimensions are as shown, then what flux would be produced by currents i, = 0.5 A and iz = 1.00 A? Assume p, = 1000 and constant. -15 cm+ +i5 cm 15 cm 600 turns 200 turms 15 cm core depth- 15 cm [0.0054 Wb]
25 PROBLEMS 12 cm +1.5-mm gap IP1000t Armature (sheet steel) Cast steel A = 2 cm? throughout FIGURE 1.27. The relay shown in Figure 1.27 has a core made of cast steel and an armature of sheet steel. A flux of 0.8 T in the air gap produces a force that pulls in the CO armature. a. Determine the required current to pull in the armature. b. What force is exerted on the armature to overcome the spring tension? c. Assuming in the closed position the air gap is reduced to 0.1 mm, to what value may the current be reduced (dropout current of relay) just to retain closure? Assume that the same force is required in the closed position to overcome the spring force.
A solenoid has a magnetic reluctance of 2.2 x 10-3. It has 300 turns and a core area of 5 sq. cm. What is the flux density when the current flowing is one (1) ampere? a. in terms Sl unit b. in terms of CGS unit
In a certain magnetic circuit, the core is represented two reluctances as shown below. Assume a relative permeability r = 2500, and a number of turns N = 420 turns. Find the current needed to produce a flux of 10 mWb in the core. Fi Select one: a. i 95 mA O b. i 0.95 A O c. i 0,226 A O d. i 9.5 mA Oe. None RI E =15624 A.t/Wb Rgap = 24.2 KA.t/Wb
A dc machine has hysteresis loss of 300 W and an eddy current loss of 200 W when running at 1200 rpm. At what speed will the total core losses be a quarter of the original if the flux is to be twice as the original.
show thatvthis is a magnetic flux density: then prove and interpret it with reasons on each step
clear and correct or dislike