Laboratory Manual for Introductory Circuit Analysis
13th Edition
ISBN: 9780133923780
Author: Robert L. Boylestad, Gabriel Kousourou
Publisher: PEARSON
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Chapter 12, Problem 19P
Find the magnetic flux
Fig.12.46
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A 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?
1. (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.
An DC series generator is otherwise called it as variable flux machine.
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Chapter 12 Solutions
Laboratory Manual for Introductory Circuit Analysis
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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- What is a "Peclet number?" Give its significance. Additionally, calculate the overall flux using the Peclet number.arrow_forward26 Choose the parameter which is developed in a generator, when a conductor cuts the magnetic flux. a. Current b. Voltage c. Mechanical Energy d. Forcearrow_forwardThe volume of a transformer core built up of silicon sheet steel laminations is 12000 cm3. If the maximum flux density is 1.0 Wb/m2, find the hysteresis loss in joule/m3 per cycle. The hysteresis coefficient is 250arrow_forward
- 8. When one coil of a magnetically coupled pair has a current of 5 A, the resulting fluxes $11 and 12 are 0.40 mWb and 0.80 mWb, respectively. If the number of turns N1 and N2 are 500 and 1500, respectively, what is the self-inductance L2?arrow_forwardThe electrodynamic wattmeter consist of two fixed coils ‘a’ and ‘b’ placed unsymmetrical to each other and producing a uniform magnetic field نقطة واحدة True Falsearrow_forwardFind the magnetic flux φ established in the seriesmagnetic circuitarrow_forward
- The flux linkages per ampere is given by: a) Resistance b) Inductance C) Capacitance d) Sagarrow_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_forwardIn a pair of coupled coils, coil 1 has a continuous of 2 A and the corresponding fluxes φ11 and φ21 are 0.3 and 0.6 mWb respectively. If the turns are N1= 500, N2= 500, find L1, L2, M and K.arrow_forward
- explain why Two coils are said to be mutually coupled if the magnetic flux Ø emanating from one pass through the other. The mutual inductance between the two coils is given by M=ksquare root of L1xL2arrow_forwardSun of currentsarrow_forwardA mild-steel ring having a cross-sectional area of 500 and a mean circumference of 400 mm has a coil of 200 turns wound uniformly around it. Calculate: a. the reluctance of the ring; b. the current required to produce a flux of 800 μ Wb in the ring. arrow_forward
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