Principles and Applications of Electrical Engineering
6th Edition
ISBN: 9780073529592
Author: Giorgio Rizzoni Professor of Mechanical Engineering, James A. Kearns Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 3, Problem 3.63HP
Find the Thé venin equivalent resistance seen by resistor
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Question 3
(a) Briefly explain what is the per-unit systero.
(b) A resistance of 60n is selected as the base resistance in a circuit
consists of three resistors. If R, =1002, R, =30002 and
%3D
R, = 200 calculate the per-unit vahue of each resistance.
%3D
(c) A power of, P-25KW and a voltage of, E-2400V are selected
as the base power and base voltage of a power system respectively.
Calculate the value of the base impedance, Z, and the base
current, I,.
(d) A resistor bas a per-nnit value of 5.3. Given the base power is
P=250KW, and the base voltage is E,-12470V, calculate the
ohmic value (actual value) of the resistor.
(e) A 4000 resistor caries a cucrent of 60A. Given the base valne of
voltage, E, 4KV, the base value of power, P, 500KTF, the
base value of current, I, =125.4, and the base value of resistor,
2, = 320 calculate the following:
i The per-unit resistance.
ii. The per-unit current.
ii. The per-unit voltage across the resistor.
iv. The per-unit power.
In the circuit shown in Figure P3.5, the source andnode voltages areVS1 = VS2 = 110 VVA = 103 V VB = −107 VDetermine the voltage across each of the five resistors
Using mesh current analysis, find the currents I1, I2, and I3 in the circuit of Figure P3.17 (assume polarity according to I2).
Chapter 3 Solutions
Principles and Applications of Electrical Engineering
Ch. 3 - Use node voltage analysis to find the voltages V1...Ch. 3 - Use node voltage analysis to find the voltages V1...Ch. 3 - Using node voltage analysis in the circuit of...Ch. 3 - Using node voltage analysis in the circuit of...Ch. 3 - In the circuit shown in Figure P3.5, the mesh...Ch. 3 - In the circuit shown in Figure P3.5, the source...Ch. 3 - Use nodal analysis in the circuit of Figure P3.7...Ch. 3 - Use mesh analysis in the circuit of Figure P3.7 to...Ch. 3 - Use nodal analysis in the circuit of Figure P3.9...Ch. 3 - Use nodal analysis in the circuit of Figure P3.10...
Ch. 3 - Use nodal analysis in the circuit of Figure P3.11...Ch. 3 - Find the power delivered to the load resistor R0...Ch. 3 - For the circuit of Figure P3.13, write the nodee...Ch. 3 - Using mesh analysis, find the currents i1 and i2...Ch. 3 - Using mesh analysis, find the currents i1 and i2...Ch. 3 - Using mesh analysis, find the voltage v across the...Ch. 3 - Using mesh analysis, find the currents I1,I2 and...Ch. 3 - Using mesh analysis. Find the voltage V across the...Ch. 3 - Prob. 3.19HPCh. 3 - For the circuit of Figure P3.20, use mesh analysis...Ch. 3 - In the circuit in Figure P3.21, assume the source...Ch. 3 - For the circuit of Figure P3.22 determine: a. The...Ch. 3 - Figure P3.23 represents a temperature measurement...Ch. 3 - Use nodal analysis on the circuit in Figure P3.24...Ch. 3 - Use mesh analysis to find the mesh currents in...Ch. 3 - Use mesh analysis to find the mesh currents in...Ch. 3 - Use mesh analysis to find the currents in Figure...Ch. 3 - Use mesh analysis to find V4 in Figure P3.28. Let...Ch. 3 - Use mesh analysis to find mesh currents in Figure...Ch. 3 - Use mesh analysis to find the current i in Figure...Ch. 3 - Use mesh analysis to find the voltage gain...Ch. 3 - Use nodal analysis to find node voltages V1,V2,...Ch. 3 - Use mesh analysis to find the currents through...Ch. 3 - Prob. 3.34HPCh. 3 - Prob. 3.35HPCh. 3 - Using the data of Problem 3.35 and Figure P3.35,...Ch. 3 - Prob. 3.37HPCh. 3 - Prob. 3.38HPCh. 3 - Use nodal analysis in the circuit of Figure P3.39...Ch. 3 - Prob. 3.40HPCh. 3 - Refer to Figure P3.10 and use the principle of...Ch. 3 - Use the principle of superposition to determine...Ch. 3 - Refer to Figure P3.43 and use the principle of...Ch. 3 - Refer to Figure P3.44 and use the principle of...Ch. 3 - Refer to Figure P3.44 and use the principle of...Ch. 3 - Prob. 3.46HPCh. 3 - Use the principle of super position to determine...Ch. 3 - Prob. 3.48HPCh. 3 - Use the principle of super position to determine...Ch. 3 - Use the principle of superposition to determine...Ch. 3 - Find the Thé venin equivalent of the network...Ch. 3 - Find the Thé venin equivalent of the network seen...Ch. 3 - Find the Norton equivalent of the network seen by...Ch. 3 - Find the Norton equivalent of the network between...Ch. 3 - Find the Thé venin equivalent of the network seen...Ch. 3 - Prob. 3.56HPCh. 3 - Find the Thé venin equivalent of the network seen...Ch. 3 - Find the Thé venin equivalent network seen by...Ch. 3 - Prob. 3.59HPCh. 3 - Prob. 3.60HPCh. 3 - Prob. 3.61HPCh. 3 - Find the Thé venin equivalent resistance seen...Ch. 3 - Find the Thé venin equivalent resistance seen by...Ch. 3 - Find the Thé venin equivalent network seen from...Ch. 3 - Find the Thé’cnin equivalent resistance seen by R3...Ch. 3 - Find the Norton equivalent of the network seen by...Ch. 3 - Find the Norton equivalent of the network seen by...Ch. 3 - Prob. 3.68HPCh. 3 - Find the Norton equivalent network between...Ch. 3 - Prob. 3.70HPCh. 3 - Prob. 3.71HPCh. 3 - Prob. 3.72HPCh. 3 - The Thé venin equivalent network seen by a load Ro...Ch. 3 - The Thévenin equivalent network seen by a load Ro...Ch. 3 - Prob. 3.75HPCh. 3 - Prob. 3.76HPCh. 3 - Many practical circuit elements are non-linear;...Ch. 3 - Prob. 3.78HPCh. 3 - The non-linear diode in Figure P3.79 has the i-v...Ch. 3 - Prob. 3.80HPCh. 3 - The non-linear device D in Figure P3.81 has the...Ch. 3 - Prob. 3.82HPCh. 3 - The so-called forward-bias i-v relationship for a...
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- For the circuit of Figure P3.22 determinea. The most efficient way to solve for the voltageacross R3. Prove your case.b. The voltage across R3.VS1 = VS2 = 110 VR1 = 500 m R2 = 167 mR3 = 700 mR4 = 200 m R5 = 333 marrow_forwardUsing mesh current analysis, find the currents I1and I2 and the voltage across the top 10- resistor inthe circuit of Figure P3.15.arrow_forwardUsing node voltage analysis, find the voltages V1 and V2 for the circuit of Figure P3.2.arrow_forward
- Using mesh current analysis, find the voltage gainAv = v2/v1 in the circuit of Figure P3.31.arrow_forwardb) For the circuit shown in Figure Q3b: i) Define coupling coefficient. ii) Find the voltage, Vx. j3 2 + Vx -A j4 Q j2 Q 520° V j5 Q j7 Q j1 0 12 12 Q Figure Q3barrow_forwardHome Work: P1 Two resistors must be selected so that the current in one is four times the current in the other. If.. their equivalent parallel resistance is 5kr, calculate R and R₂.. Ans: 6.25k,25k]arrow_forward
- The value of the equivalent voltage source at the A-B ends of the circuit in the figure is found in ………volts.arrow_forwardFor the following figure (3.7): the bridge circuit in the figure is in equilibrium when R1 = 100 Ohms, R2 = 1000 Ohms, and R3 = 150 Ohms. The circuit has a voltage source of 5 V DC. Determine the value of the resistance Rx.arrow_forwardConsider the circuit shown in Figure P3,34. Determine for:arrow_forward
- With reference to Figure P3.43, usingsuperposition, determine the component of the currentthrough R3 that is due to VS2.VS1 = VS2 = 450 VR1 = 7Ω R2 = 5Ω R3 = 10Ω R4 = R5 = 1 Ωarrow_forwardA combination of three resistors R1, R2 and R3 in series is connected across a voltage source Vr. The voltage drop across R1 and R3 are 10 V and 36 V, respectively. If the current supplied by the source voltage is 1.4 A and the total power supplied by the source is 70 W, Calculate the following: A. The value of Vr and the voltage drop across R2 (Ans. VT B. The equivalent resistance across the voltage source, and the values of R1, R2 and R3 (Ans. Req 50 V, V2 = 4 V) 2.8571 N, R3 = 35.7143 N, R¡ = 7.1429 N, R2 = C. The power dissipated by each resistor (Ans. P1 = 14 W, P2 = 5.6 W, P3 = 50.4 W) = 25.7143 N)arrow_forwardBasic Electrical EngineeringDraw symbols of electrical components. Note: You may use both IEC and NEMA symbols. - Conductors crossing but not connected- Conductors crossing and connected - DC source other than battery- DC generator- AC voltage source- Ideal current source- Ideal Voltage Source- Current Controlled Current Source- Current Controlled Voltage Source- Voltage Controlled Current Source - Voltage Controlled Voltage Sourcearrow_forward
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