Electric machinery fundamentals
5th Edition
ISBN: 9780073529547
Author: Chapman, Stephen J.
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 1, Problem 1.11Q
What is Faraday’ law?
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Vs
R1
R2
ww
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21x
R3
Define the Thevenin equivalent of the above circuit where R1= 10 52, R2= 30 S2, R3 = 30 12,
Vs = 70 V.
VThevenin
Number
V
RThevenin
= Number
Ω
R1
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R3
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R2
R4
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With the circuit diagram shown above and the values of the circuit elements listed below, find i1, 12, v1, and v2.
Is = 10A, R1 = 7 ohms, R2 = 9 ohms, R3 = 7 ohms, R4 = 8 ohms
(a) i1 = Number
A
(b) 12 = Number
A
(c) v1 = Number
V
(d) v2 = Number
V
15
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22
R2
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i4
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Solve for current i4 using superposition where R1 = 902, R2 = 36052, R3 =
360 V, and 15 = 5 A.
27052, V4 =
i4 due to voltage source (V4) alone:
Number
A
i4 due to current source (15) alone: Number
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i4 = Number
Chapter 1 Solutions
Electric machinery fundamentals
Ch. 1 - What is torque? What role does torque play in the...Ch. 1 - What is Amperes law?Ch. 1 - What is magnetizing intensity? What is magnetic...Ch. 1 - How does the magnetic circuit concept aid in the...Ch. 1 - What is reluctance?Ch. 1 - What is a ferromagnetic material? Why is the...Ch. 1 - How does the relative permeability of a...Ch. 1 - Prob. 1.8QCh. 1 - What are eddy current losses? What can be done to...Ch. 1 - Why are all cores exposed to ac flux variations...
Ch. 1 - What is Faraday law?Ch. 1 - What conditions are necessary for a magnetic field...Ch. 1 - What conditions are necessary for a magnetic field...Ch. 1 - Prob. 1.14QCh. 1 - The linear machine in Figure 1-19 is running at...Ch. 1 - Just how does a decrease in flux produce an...Ch. 1 - Will current be leading or lagging voltage in an...Ch. 1 - What are real, reactive, and apparent power? What...Ch. 1 - What is power factor?Ch. 1 - Prob. 1.1PCh. 1 - A flywheel with a moment of inertia of 4kgm2 is...Ch. 1 - A force of 10 N is applied to a cylinder of radius...Ch. 1 - A motor is supplying 50Nm of torque to its load....Ch. 1 - A ferromagnetic core is shown in Figure P1-2. The...Ch. 1 - A ferromagnetic core with a relative permeability...Ch. 1 - A two-legged core is shown in Figure P1-4. The...Ch. 1 - A core with three legs is shown in Figure P1-5....Ch. 1 - A two-legged core is shown in Figure P1-4. The...Ch. 1 - A wire is shown in Figure P1-7 that is moving in...Ch. 1 - Repeat Problem 1-10 for the wire in Figure P1-8.Ch. 1 - Prob. 1.12PCh. 1 - A core with three legs is shown in Figure P1-10....Ch. 1 - A two-legged magnetic core with an air gap is...Ch. 1 - A transformer core with an effective mean path...Ch. 1 - The core shown in Figure P1-2 has the flux shown...Ch. 1 - Prob. 1.17PCh. 1 - Prob. 1.18PCh. 1 - Prob. 1.19PCh. 1 - Demonstrate that Equation (1-59) can be derived...Ch. 1 - Prob. 1.21PCh. 1 - Prob. 1.22PCh. 1 - For the linear machine of Problem 1-22: When this...
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- PV Array Va DC/DC Converter Control Circuit ис V R Fig. 2. Principle of using DC/DC converter to implement electronic load [2] 4.5 1.5 -0.5 SEPIC Converters in SOM 0 0.2 0.4 0.6 0.8 Time SEPIC Converters in SOM M 0 0.2 0.4 0.6 0.8 Time Current I-V Curve (a) 8888888 P-V Curve 0 20 40 60 80 Voltage 0 20 40 60 Voltage 80 (b) Fig. 3. Experimental results of I-V and P-V curves [2]arrow_forwardR1 ww + R3 15+ www R2 R4 ww With the circuit diagram shown above and the values of the circuit elements listed below, find i1, 12, v1, and v2. Is = 10A, R1 = 7 ohms, R2 = 9 ohms, R3 = 7 ohms, R4 = 8 ohms (a) i1 = Number A (b) 12 = Number A (c) v1 = Number V (d) v2 = Number Varrow_forwardFind the equivalent resistance between terminals a and b in the circuit below where R₁ =6 N, R₂=12, R3=22, R4=22, and R5=150. 22 R2 R1 R5 oa R3 R4 ob Req= Number Ωarrow_forward
- A Thévenin equivalent can also be determined from measurements made at the pair of terminals of interest. Assume the following measurements were made at the terminals a,b in the figure below. When a 25 k2 resistor is connected to the terminals a,b, the voltage is measured and found to be 105 V. When a 2 k resistor is connected to the terminals a,b, the voltage is measured and found to be 13 V. Find the Thévenin equivalent of the network with respect to the terminals a,b. Linear resistive network with independent and dependent sources RTh = Number ΚΩ VTh= Number V a barrow_forwardI need help with this problem and an explanation of the solution for the image described below. (Introduction to Signals and Systems)arrow_forwardI need help with this problem and an explanation of the solution for the image described below. (Introduction to Signals and Systems)arrow_forward
- I need help with this problem and an explanation of the solution for the image described below. (Introduction to Signals and Systems)arrow_forwardI need help with this problem and an explanation of the solution for the image described below. (Introduction to Signals and Systems)arrow_forwardGiven 2 AWG, Aluminum, TW, 86 F, 2 Conductors, find Ampacityarrow_forward
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