Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Textbook Question
Chapter 12, Problem 14P
a. Find the current I required to establish a flux
b. Compare the mmf drop across the air gap to that across the rest of the magnetic circuit. Discuss your results using the value of
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Explain the following.
A. Magnetic Field Strength
B. Boundary Conditions
PLEASE ANSWER IT ASAP FOR AN UPVOTE. THANK YOU.
Round off your answer into four decimal places .Box your final answer .Use SI unit.
A magnetic circuit consist of silicon having a cross section of 1.5 sq. m and 0.1 m length and an air gap of the same cross section and pf 0.02 m length. what is the field intensity at the air gap if 0.5 A current flows through the 5000-turns coil? Assume the permeability of silicon steel is 3000.
A flux of 0.0016 Wb flows in a silicon sheet steel coil/core. The arrangement appears as shown below
with the following dimensions:
Ac = 0.0025 m?
Core/gap area:
Flux path length:
le = 0.350 m
lg = 0.0015 m
N = 500
Air gap length:
Number of turns:
%3D
A. What is the current, I, through the winding?
B. What is the energy stored in the inductance?
C. Assume that the current is given by i =9.75 sin (3147) A. What is the RMS voltage that would
appear across the winding?
D. Assume that the gap is removed from the arrangement with the flux path remaining at 0.350 m. For a
flux of 0.0016 Wb, what is the inductance of the arrangement?
E. What is the energy stored in the inductance with the gap removed?
Chapter 12 Solutions
Introductory Circuit Analysis (13th Edition)
Ch. 12 - Using Appendix E, fill in the blanks in the...Ch. 12 - Repeat Problem 1 for the following table if...Ch. 12 - For the electromagnet in Fig. 12.34 a. Find the...Ch. 12 - Which section of Fig. 12.35-(a), (b), or (c)-has...Ch. 12 - Find the reluctance of a magnetic circuit if a...Ch. 12 - Prob. 6PCh. 12 - Find the magnetizing force H for Problem 5 in SI...Ch. 12 - If a magnetizing force H of 600 At/m is applied to...Ch. 12 - For the series magnetic circuit in Fig. 12.36,...Ch. 12 - Find the current necessary to establish a flux of...
Ch. 12 - a. Find the number of turns N1 required to...Ch. 12 - a. Find the mmf (NI) required to establish a flux...Ch. 12 - For the series magnetic circuit in Fig.12.40 with...Ch. 12 - a. Find the current I required to establish a flux...Ch. 12 - Prob. 15PCh. 12 - Determine the current I1 required to establsh a...Ch. 12 - a. A flux of 0.210-4Wb will establish sufficient...Ch. 12 - For the series-parallel magnetic circuit in Fig....Ch. 12 - Find the magnetic flux established in the series...Ch. 12 - Prob. 20PCh. 12 - Note how closely the B-H curve of cast steel in...
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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
- 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?arrow_forwardConsider an iron ring of 10 cmdiameter is uniformly wounded with 3000 turns of wire. The coil current is 0.25 A and a flux density of 0.6 T is set in the ring. Determine the relative permeability of the iron and magnetic field strength.arrow_forwardBiot-Savart law expresses the magnetic flux intensity produced by a dc electrical current Select one: O a. True b. None of the above O c. Falsearrow_forward
- 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 relative permeability of the magnetic material of the core?arrow_forwardF.) An iron core has a cross-sectional area of 10^(-3) square meter and mean circumference of 1 meter. The relative permeability of the material is 500 and the number of turns is 200. Determine the current required to set up a flux of 0.001 weber. a. 7.54 A b. 7.96 A c. 8.19 A d. 8.47 Aarrow_forward4. Consider a coil of wire wrapped around an iron core. If the flux in the core is given by the equation o = 0. 5sinwtWb and if there are 200 turns on the core, what voltage is produced at the terminals of the coil?arrow_forward
- A coil of moving instrument is wound with 250 turns of wire. The flux density in the gap is 0.085 Tesla and the effective length of the coil side in the air gap is 5cm. Find the force doing acting on each coil side when carrying current of 60mA? In Dynesarrow_forwardFind the hall coefficient of a silicon material used in a Hall generator with a gap distance is 2.0 cm. When a current of 300 A flows, the hall voltage is recorded as 10 V and a magnetic flux density of 0.2 T is produced. Lütfen birini seçin: a. 0.0461 b. 0.0074 c. 0.0695 d. 3.3333 e. 0.0033arrow_forwardA magnetic flux density of 2.5 sin314t Tesla from the core with a cross section of 40 cm2 wandering. Accordingly, in 200 sipir and 45 sipir coils wrapped on the core Find the voltage that will occur.arrow_forward
- Show the complete solution. 1. A solenoid 20 cm long is wound with 300 turns of wire and carries a current of 1.5 A. What is the approximate relative permeability of this core so as to produce a magnetic field of 0.6 T inside? A. 225 B. 212 C. 210 D. 280 8. Two coils have inductance of 4 mH and 9 mH and coefficient of coupling is 0.50. If the two coils are connected in series opposing, the total inductance will be A. 10 mH B. 8 mH C. 9 mH D. 7 mHarrow_forwardQ4/ A square-wave (Fig.3) voltage of amplitude E = 100 V and frequency 60 Hz is applied on a coil wound on a closed iron core. The coil has 500 turns, and the cross-sectional area of the core is 0.001 m?. Find the maximum value of a. the flux and sketch the waveforms of voltage and flux as a function of time. b. E if the maximum flux density is not to exceed 1.2 T. E = 100 V 60 Hz Fig.3 t (sec) 1 60 - 100 Varrow_forwardFigure 1 shows a ring formed with two different materials – cast steel and mild steel. Mild steel has a mean length of 400 mm and an area of 500 mm². Cast steel has a mean length of 300 mm and an area of 312.5 mm2. The magnetisation curve for mild steel and cast steel is shown in Figure 2. Find the total MMF required to cause a flux of 500 µWb in the magnetic circuit. Determine also the total circuit reluctance. 1.8 Cașt steel Cast-steel 1.6 Silicon iron 1.4 Mild steel 1.2 1.0 0.6 Mild stel Cast iron 0.6 Figure 1: Ring arrangement 0.4 0.2 3000 4000 Magnetic field strength, H(A/m) 1000 2000 5000 600ỘI 7000 Figure 2: Magnetization Curve MMF = AT Reluctance = x 10* ΑT/Wb Flux density, B(T)arrow_forward
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