Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Chapter 12, Problem 5P
Find the reluctance of a magnetic circuit if a magnetic flux
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Find 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. 0.0033
Using figures (a) and (b), a magnetic flux density of 0.1 Wb in the air gap Determine the current I in the coil with 200 turns required to produce
Find the reluctance of a magnetic circuit if a magnetic flux $ = 4.2 × 10-4 Wb is established by an impressed mmf of
400 At.
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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- Consider 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_forwardExplain the following. A. Magnetic Field Strength B. Boundary Conditionsarrow_forwardQuantity that is not affected by magnetic field is Current flowing in conductor Moving charge Stationary charge None of the choicesarrow_forward
- 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?arrow_forwardThe 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_forwardA rectangular coil of wire has a length of 3 cm and a width of 4 cm. It is in a 0.004 T magnetic field. What is the magnetic flux through the coil if the face of the coil is parallel to the B-field lines? What is the flux if the angle between the face of the coil and the magnetic field is 75°?arrow_forward
- An electromagnet shown below has a cross section area of 10 cm2 with a mean length of iron path of 100cm and mean length of airgap is 0.4cm . It is excited by a coil of 1000 turns of conductor windings. When a current of 1A is provided to the coil and the relative permeability of iron is 1300, then find the magnetic flux in the circuit. Select one: Oa. 1.25Wb O b. None of these Oc.0.00027Wb O d. 027W.arrow_forwardA magnetic coil produces 100,000 maxwell with 2000 turns and with a current of a 2A. The current is cut-off and the flux collapse in 0.01 sec. What is the average voltage that will appear across the coil?arrow_forward1. What is the reluctance of 10 cm diameter silicon steel of 2500 permeability with a mean length of 20 cm? A. 0.000201 cgs B. 0.000102 cgs C. 0.000212 cgs D. 0.000123 cgs 2. At what rate the flux must be varied to measure 12 V across the terminal of 300 turns coil? A. 0.05 Wb/s B. 0.04 Wb/s C. 0.03 Wb/s D 0.02 Wb/sarrow_forward
- 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.arrow_forwardA magnetic circuit has a length of 100 cm and cross-sectional area of 5 square cm. The total flux is 10 x 10 webers. The coil has 100 turns and current of 4 amperes. What is the magnetic strength? a. 500 AT/m b. 400 AT/m c. 350 AT/m d. 450 AT/marrow_forwardAn iron circuit with a small0.75 mm air gap is shown in Figure 1. A 6000 turn coil carries a current I = 18 mA which sets up a flux within the iron and across the air gap. The cross section of the iron is a consistent 0.8 cm2, and the mean length of the flux path is 0.15 m. a) Redraw the magnetic circuit using schematic symbols of an electric circuit with reluctance in each part of the circuit. b) State's Ohm's Law for magnetic circuit. c) By neglecting the effect of fringing, calculate the reluctance of the circuit. d) Find the flux within the core. N = 6000 Iron circuit (u, = 800 for iron). Figure 1arrow_forward
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