Introductory Circuit Analysis
13th Edition
ISBN: 9780133923919
Author: Boylestad, Robert L.
Publisher: Pearson Education
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Textbook Question
Chapter 23, Problem 7P
If the maximum flux passing through the core of Problem 4 is 3.75 mWb, find the frequency of the input voltage.
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Chapter 23 Solutions
Introductory Circuit Analysis
Ch. 23 - For the air-core transformer in Fig. 23.57: Find...Ch. 23 - Repeat Problem 1 if k is changed to 1. Repeat...Ch. 23 - RepeatProblem1fork=0.3,NP=300turns,andNS=25turns.Ch. 23 - For the iron-core transformer (k = 1) in Fig....Ch. 23 - RepeatProblem4forNP=240andNS=30.Ch. 23 - Find the applied voltage of an iron-core...Ch. 23 - If the maximum flux passing through the core of...Ch. 23 - For the iron-core transformer in Fig. 23.59: Find...Ch. 23 - Find the input impedance for the iron-core...Ch. 23 - Find the voltage Vg, and the current Ip if the...
Ch. 23 - If VL=240V,ZL=20resistor,Ip=0.05AandNs=50 find the...Ch. 23 - If Np400,Ns=1200andVg=100V,findthemagnitudeofIp...Ch. 23 - For the circuit in Fig. 23.60, find the...Ch. 23 - For the transformer in Fig. 23.61, determine the...Ch. 23 - For the transformer in Fig. 23.61, if the...Ch. 23 - Prob. 16PCh. 23 - Discuss in your own words the frequency...Ch. 23 - Determine the total inductance of the series coils...Ch. 23 - Determine the total inductance of the series coils...Ch. 23 - Determine the total inductance of the series coils...Ch. 23 - Write the mesh equations for the network in Fig....Ch. 23 - Determine the input impedance to the air-core...Ch. 23 - An ideal transformer is rated...Ch. 23 - Determine the primary and secondary voltages and...Ch. 23 - For the center-tapped transformer in Fig. 23.42,...Ch. 23 - For the multiple-load transformer in Fig. 23.43,...Ch. 23 - Prob. 27PCh. 23 - Write the mesh equations for the network of Fig....Ch. 23 - Write the mesh equations for the network of Fig....Ch. 23 - A current transformer has a secondary with 250...Ch. 23 - Generate the schematic for the network in Fig....Ch. 23 - Prob. 32PCh. 23 - Using a transformer from the library find the load...
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- The Ohms law for the magnetic circuit states that the net magnetomotive force (mmf) equals the product of the core reluctance and the core flux. (a) True (b) Falsearrow_forwardConsider Figure 3.5. Match the following, those on the left to those on the right. (i) Im (a) Exciting current (ii) Ic (b) Magnetizing Current (iii) Ie (c) core loss currentarrow_forwardPlease find the total flux in the core, the flux density B, and the magnetic field intensity H. When a 50 mA is applied to the core in the picturearrow_forward
- 11. The eddy current loss of a given solid core is 80 W at 50 Hz. What would be the loss of 60 Hz if the core flux density remained the same at the two frequencies. Answer: 115.2 W a. 55.55 W b. 66.67 W c. 96 W d. 115.2 Warrow_forwardThe eddy current loss of a given solid core is 80 W at 50 Hz. What would be the loss of 60 Hz if the core flux density remained the same at the two frequencies. Answer: 115.2 W Use formula: Pe=ke f²arrow_forwardProblem 1A core with a coil has 240 turns, to generate a flux ø of 0.008482 weber, how much should the current i1 be and what will its direction be? Relative permeabilities: metal 1 of 250 and metal 2 of 375. Core depth 25cmarrow_forward
- Find the total magnetic flux.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
- 4. A non-magnetic current having a cross sectional area of 10 cm2 is uniformly wound with 300 turns of a given wire. If a current of 1A is passed through the coil, 2.4 micro-Weber of flux is generated inside the sing, determine the average diameter of the ringa. 50 cmc. 48 cmb. 42 cmd. 54 cmarrow_forwardA ring rotates around the y-axis in a magnetic field B=B0sinwt ax Wb/m2. The voltage induced in the ring is related to which of the following? Please choose one: a.None b.A combination of motion and transformer emf C.Motion emf D.Transformer emfarrow_forwardAn electromagnet has an air gap of 3 mm length and the flux density in the gap is 1.257 T. Find the ampere-turns required for the air gap.arrow_forward
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