Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Textbook Question
Chapter 12, Problem 13P
For the series magnetic circuit in Fig.12.40 with two impressed sources of magnetic “pressure,” determine the current I. Each applied mmf establishes a flux pattern in the clockwise direction.
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11. There is 900 mA of current through a wire with 40 turns. What is the reluctance of the circuit if
the flux is 400Wb?
14,400 At/Wb
B 1,440 At/Wb
Ⓒ9,000 At/Wb
O90,000 At/Wb
Answer: Option O
Explanation:
No answer description is available. Let's discuss.
A coll consist of 750 turns. A current of 10A in the coil gives a rise to a magnetic flux of 1200 Wb. Determine the inductance of the coil
An air core toroidal coil has 120 turns, the length is 12 cm and 12 sq. cm in area What is the
current required to set up a flux of 1.2x10° weber. What is the current?
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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- In the given circuit, if number of turns of coil is 125 and current is 2A, relative permeability of the core is 765 and mean length of core is 0.2m and cross section area of 0.01m2 , then the flux generated in the core is Select one: O a. 1.24mWb HO b. None of these O c.0.124mWb O d. 1.24 Wbarrow_forwardIn a certain cast-steel core series magnetic circuit with a 400 turns, 170 At/m, mean length of 0.16 m and 0. 002 square meters cross-sectional area. the value of current to develop a 0.0004 Wb isarrow_forwardA ferromagnetic core in the shape of a doughnut has a cross-sectional area of 0.11 m2 and an average length of 1.4 m. The permeabil ity of the core is 1.206 × 10-3 Wb/A-t. m. Determine the reluctance of the magnetic circuitarrow_forward
- The length of a magnetic circuit in a moving iron instrument is 300mm. The coil around the soft iron core has 360 turns and takes a current of 1.75 A. The core is square in section with sides of 20mm. Take the relative permeability of soft iron as 1100. Determine the total fluxarrow_forwardHOW TO Plot on the same graph two cycles of the primary current, the primary flux linkage, he primary input voltage, and the secondary induced voltage ON ANSYS?arrow_forwardshow thatvthis is a magnetic flux density: then prove and interpret it with reasons on each steparrow_forward
- A coil that consists of 450 windings is wound around a bakelite ring. The mean diameter of the ring is 100 mm and the diameter of the bakelite core is 20 mm. The current through the coil is 3 A. Determine: a) the field strength b) the flux density c) the total fluxarrow_forward. 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_forwardwer the followings A. Find the current supplied by the battery to the following circuit of when a "short' occurs across terminals a and b T -12 V N turns R1 www 4kQ Cast iron a b R2 ΣΟΚΩ For the following magnetic circuit, the flux passing through the core is 1.32 mWb, the cross section of the core is 3 cm by 4 cm, the laminated section has a stacking factor of 0.9, and the gap is 1 mm Determine the flux density in each section. Neglect fringing R3 ww 3ΚΩ Air gap Laminated sheet steelarrow_forward
- Find the pull exerted on the plunger of an electromagnet when the total flux is 300 uWb. The diameter of the plunger is 2 cm.arrow_forwardMagnetics Circuits ( Series and parallel & Magnetic Circuits) Write your soln neat and complete. THANK YOU! Please answer it in 30 mins. ASAParrow_forwardA magnetic circuit has a length of 100 cm and cross-sectional area of 5 square cm. The total flux is 10 x 104 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_forward
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