EBK INTRODUCTORY CIRCUIT ANALYSIS
13th Edition
ISBN: 8220100668234
Author: Boylestad
Publisher: PEARSON
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Chapter 12, Problem 15P
To determine
The force carried by the plunger.
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In 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.
When one coil of magnetically coupled pair has a current of 5 Amp, the resulting flux Φ11 = 0.4 mWb and flux Φ12 = 0.8 mWb respectively. If the turns are N1 = 500 and N2 = 1500, Find L1 and coupling coefficient k.
Two Coils A and B are kept in parallel plane, such that 70% of the flux produced by coil A link with coil B. Coil A has 10,000 turns, Coil B has 12, 000 turns. A current of 4 A in coil A produce a flux of 0.04 mWb while a current of 4 A in coil B produces a flux of 0.8 mWb. Calculate Self-inductance L1 and L2, mutual inductance and Coupling Coefficient.
Chapter 12 Solutions
EBK 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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- 1. Determine the force in pounds upon each side of a coil of 40 turns carrying a current of 15 A if the axial length of the coil is 10 inch and flux density is 20,000 lines per square inch. The conductors are at right angles to the flux.? 2. Two coupled coils with L1= 20 mH, L2 = 10mH and k = 0.5 are connected in series opposing. Determine the total inductance.?arrow_forwardIn a core with a 60-turn coil, a flux ø of 4.24 milliweber is generated due to a current i1 of 10 A that circulates through said coil, if the relative permeability of metal 1 is 500, Calculate the value of the permeability of metal 2.arrow_forwardConsider a ferromagnetic ring (nucleus) that has a mean circumference of 40 cm, 300coiled copper turns and a sectional area of 5 cm2. A current of 2 is appliedA to winding, producing a flux of 1.5 mWb.Determine the permeability of the core material.Determine the relative permeability of the core material.If the ferromagnetic ring has an air gap of 2 mm. Find the required MMFso that the flux density in the gap is 0.5 T.arrow_forward
- Bar type CT has the following parameters:CT ratio = 2000/5 AMaximum primary current = 40 kAMaximum flux density in the core = 1.6 TImpedance (Actual burden) = 0.31 ΩCore cross sectional area = 20 cm2Find the maximum burden permissible if no saturation occurs.arrow_forwardA conductor of length 15 cm is moved at 750 mm/s at right angles to a uniform flux density of 1,2 T. Determine the emf induced in the conductor. Calculate also the change of flux linked with the other coil if it is wound with 400 turns.arrow_forward) A conductor moves with a velocity of 15 m/s at an angle of (a) 90◦, (b) 60◦ and (c) 30◦ to a magnetic field produced between two square-faced poles of side length 2 cm. If the flux leaving a pole face is 5 μWb, find the magnitude of the induced e.m.f. in each case. (b) Determine the delta-connected equivalent network for the star-connected impedances shown inarrow_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_forward8. A 3-phase, 50 Hz transformer has an iron cross section of 400 cm^2. If the flux density be limited to 1.2 T, find the number of turns per phase on high and low voltage windings. The voltage ratio is 2,200/110 V, the HV side being connected in wye and the LV side is delta.arrow_forward21 In a DC generator, if the core loss constant and the copper loss is increasing, then the efficiency will be maximum. Select one: True Falsearrow_forward
- choose the correct answer :- 15. Over currents cause stresses on the plant elements .......... and .. ...... in direct proportion to their amplitude and duration of action . The most appropriate words that should come into the gaps are given in which point correctly. a) magnetic ........ dynamicb) excessively ......... effectivec) thermal ..... magneticd) basic ...... effectivee) dynamic ..... thermalarrow_forwardA toroid (ring shaped) magnetic core is wounded by a coil having 250 turns. The inner (ri) and outer radii (rd) are 20cm and 25cm, respectively. The toroidal core has a circular cross section (S). For a coil current of 2.54 A, calculatea. The magnetic flux density along the mean radius of the core (l).b. Flux in the core.c. Flux linkage of the coil.d. Reluctance of the toroid core.e. Magnetic permeability of the material.f. The inductance of the coil, under the assumption that the flux density within the core is uniform and same at every point of the core.arrow_forwardA toroid (ring shaped) magnetic core is wounded by a coil having 250 turns. The inner (ri) and outer radii (rd) are 20cm and 25cm, respectively. The toroidal core has a circular cross section (S). For a coil current of 2.54 A, calculatea. The magnetic flux density along the mean radius of the core (l).b. Flux in the core.c. Flux linkage of the coil.d. Reluctance of the toroid core.e. Magnetic permeability of the material.f. The inductance of the coil, under the assumption that the flux density within the core is uniform and same at every point of the core.Harrow_forward
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