Introductory Circuit Analysis; Laboratory Manual For Introductory Circuit Analysis Format: Kit/package/shrinkwrap
13th Edition
ISBN: 9780134297446
Author: Boylestad, Robert L.
Publisher: Prentice Hall
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Textbook Question
Chapter 12, Problem 12P
a. Find the mmf (NI) required to establish a flux
b. Find the permeability of each material.
Fig. 12.39
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A coil of 1000 turns is uniformly wound on a ring type non-magnetic material. The mean diameter and cross-sectional area of the ring are 20 cm and 4 cm^2. If the current flowing is 2 A, find the total flux in μWb.
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Chapter 12 Solutions
Introductory Circuit Analysis; Laboratory Manual For Introductory Circuit Analysis Format: Kit/package/shrinkwrap
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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- 13. A non-magnetic ring having a cross-sectional area of 10 cm2 is uniformly wound with 300 turns of a given wire. If a current of 1 A is passed through the coil, 2.4 µWb of flux generated inside the ring. Determine the average diameter of the ring.arrow_forward24. Calculate the AT/m to produce a flux density of 0.001 Wb/m^2 at the center of a long straight solenoid.arrow_forward1. (a) Show that if three phase currents, each of equal magnitude and differing in phase by 120 degree, flow in a three phase winding that are 120 degree apart from each other then it will produce a rotating magnetic field of a fixed magnitude.arrow_forward
- q1) Draw magnetization curve for iron under AC excitation at 0 Hz, 50 Hz, and 100Hz on the same graph. repeat part (1) for wood. What can be inferred from the fact that flux form closed paths.arrow_forwardA coil of inductance 8mH, produces 80µWb of magnetic flux. Of this total flux, 60µWb are linked to a second coil of inductance 2mH, how much is the mutual inductance between coils?arrow_forwardCalculate the flux density (B), produced by a magnetizing force (H) of 2000At/m in steel having a relative permeability of 400.arrow_forward
- A magnetic circuit consists of an iron ring of mean circumference 80 cm with cross-sectional area 12cm2 throughout. A current of 2A in the magnetising coil of 200 turns produces a total flux of 1.2mWb in the iron. Calculate : (a) the flux density in the iron(b) the absolute and relative permeabilities of iron(c) the reluctance of the circuit [ANSWER: 1 Wb/m2 ; 0.002, 1,590 ; 3.33 × 105 AT/Wb]arrow_forwardA current flows through a long straight conductor. If the magnetic field strength at a distance of 5 cm from the conductor is 8 mT, calculate the current flowing through the conductor.arrow_forward3.2 A generator has a copper conductor of 6 m length, rotating at a speed of 10 m/s at a right angle to the uniform magnetic flux density of 10 T. 3.2.1 Determine the magnitude of the induced emf across the ends of the conductor. 3.2.2 Determine the magnitude of the induced emf if the flux density changes to 15 T.arrow_forward
- A current carrying conductor placed in a magnetic field experience a force, is it true for generators? Select one: O True O Falsearrow_forwarda. Find the reluctance of a magnetic circuit if amagnetic flux φ = 4.2 × 10−4 Wb is established byan impressed mmf of 400 A-turns.b. Find the magnetizing force H in SI units if themagnetic circuit is 6 in long.arrow_forwardA circular ring of iron having a cross sectional area of 5 cm2, an average diameter of 30 cm is wound with a coil of 1000 turns. If a current of 3 A is passed through the coil, determine the flux generated. Assume the permeability of iron is 250. machine subjectarrow_forward
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