Electrical Circuits and Modified MasteringEngineering - With Access
10th Edition
ISBN: 9780133992793
Author: NILSSON
Publisher: PEARSON
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Chapter 4, Problem 20P
(a)
To determine
Calculate the voltage
(b)
To determine
Calculate the total power supplied in the given circuit.
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10.34 Determine the power readings of the two wattmetersshown in the circuit of Fig. P10.34 given that ZY = (15− j5) W
10.29 A 208-V (rms) balanced three-phase source supports twoloads connected in parallel. Each load is itself a balanced threephaseload. Determine the line current, given that load 1 is 12 kVAat pf 1 = 0.7 leading and load 2 is 18 kVA at pf 2 = 0.9 lagging.
10.31 A 240-V (rms), 60-Hz Y-source is connected to a balancedthree-phase Y-load by four wires, one of which is the neutral wire.If the load is 400 kVA at pf old = 0.6 lagging, what size capacitorsshould be added to change the power factor to pf new = 0.95lagging?
Chapter 4 Solutions
Electrical Circuits and Modified MasteringEngineering - With Access
Ch. 4.2 - a) For the circuit shown, use the node-voltage...Ch. 4.2 - Use the node-voltage method to find v in the...Ch. 4.3 - Use the node-voltage method to find the power...Ch. 4.4 - Use the node-voltage method to find vo in the...Ch. 4.4 - Use the node-voltage method to find v in the...Ch. 4.4 - Use the node-voltage method to find v1 in the...Ch. 4.5 - Use the mesh-current method to find (a) the power...Ch. 4.6 - Determine the number of mesh-current equations...Ch. 4.6 - Use the mesh-current method to find vo in the...Ch. 4.7 - Use the mesh-current method to find the power...
Ch. 4.7 - Use the mesh-current method to find the mesh...Ch. 4.7 - Use the mesh-current method to find the power...Ch. 4.8 - Find the power delivered by the 2 A current source...Ch. 4.8 - Find the power delivered by the 4 A current source...Ch. 4.9 - Use a series of source transformations to find the...Ch. 4.10 - Find the Thévenin equivalent circuit with respect...Ch. 4.10 - Prob. 17APCh. 4.10 - Prob. 18APCh. 4.11 - Find the Thévenin equivalent circuit with respect...Ch. 4.11 - Find the Thévenin equivalent circuit with respect...Ch. 4.12 - Find the value of R that enables the circuit shown...Ch. 4.12 - Assume that the circuit in Assessment Problem 4.21...Ch. 4 - For the circuit shown in Fig. P4.1, state the...Ch. 4 - If only the essential nodes and branches are...Ch. 4 - Assume the voltage vs in the circuit in Fig. P4.3...Ch. 4 - A current leaving a node is defined as...Ch. 4 - How many separate parts does the circuit in Fig....Ch. 4 - Use the node-voltage method to find vo in the...Ch. 4 - Find the power developed by the 40 mA current...Ch. 4 - A 50 Ω resistor is connected in series with the 40...Ch. 4 - Use the node-voltage method to find how much power...Ch. 4 - Use the node-voltage method to show that the...Ch. 4 - Use the node-voltage method to find the branch...Ch. 4 - Use the node-voltage method to find v1 and v2 in...Ch. 4 - Use the node-voltage method to find v1 and v2 in...Ch. 4 - Use the node-voltage method to find v1, v2, and v3...Ch. 4 - The circuit shown in Fig. P4.14 is a dc model of a...Ch. 4 - Use the node-voltage method to find the total...Ch. 4 - Use the node-voltage method to find vo in the...Ch. 4 - Use the node-voltage method to calculate the power...Ch. 4 - Use the node-voltage method to find the total...Ch. 4 - Use the node voltage method to find vo for the...Ch. 4 - Find the node voltages v1, v2, and v3 in the...Ch. 4 - Use the node-voltage method to find υ0 and the...Ch. 4 - Use the node-voltage method to find the value of...Ch. 4 - Use the node-voltage method to find io in the...Ch. 4 - Use the node-voltage method to find the power...Ch. 4 - Use the node-voltage method to find vo in the...Ch. 4 - Use the node-voltage method to find the branch...Ch. 4 - Use the node-voltage method to find the value of...Ch. 4 - Assume you are a project engineer and one of your...Ch. 4 - Use the node-voltage method to find the power...Ch. 4 - Show that when Eqs. 4.13, 4.14, and 4.16 are...Ch. 4 - Use the mesh-current method to find the branch...Ch. 4 - Solve Problem 4.11 using the mesh-current...Ch. 4 - Solve Problem 4.14 using the mesh-current...Ch. 4 - Solve Problem 4.26 using the mesh-current...Ch. 4 - Use the mesh-current method to find the total...Ch. 4 - Solve Problem 4.25 using the mesh-current...Ch. 4 - Solve Problem 4.17 using the mesh-current...Ch. 4 - Use the mesh-current method to find the power...Ch. 4 - Use the mesh-current method to find the power...Ch. 4 - Use the mesh-current method to find υ0 in the...Ch. 4 - Use mesh-current method to find the power...Ch. 4 -
Use the mesh-current method to solve for iΔ in...Ch. 4 - Solve Problem 4.10 using the mesh-current...Ch. 4 - Solve Problem 4.21 using the mesh-current...Ch. 4 - Use the mesh-current method to find the total...Ch. 4 - Use the mesh-current method to find how much power...Ch. 4 - Use the mesh-current method to determine which...Ch. 4 - Use the mesh-current method to find the total...Ch. 4 - Prob. 50PCh. 4 - Solve Problem 4.23 using the mesh-current...Ch. 4 - Use the mesh-current method to find the branch...Ch. 4 - Find the branch currents ia − ie for the circuit...Ch. 4 - Assume you have been asked to find the power...Ch. 4 - A 4 kΩ resistor is placed in parallel with the 10...Ch. 4 - Would you use the node-voltage or mesh- current...Ch. 4 - Prob. 57PCh. 4 - The variable de voltage source in the circuit in...Ch. 4 - Make a series of source transformations to find...Ch. 4 - Prob. 60PCh. 4 - Use source transformations to find the current io...Ch. 4 - Use a series of source transformations to find i0...Ch. 4 - Use source transformations to find vo in the...Ch. 4 - Prob. 64PCh. 4 - Find the Norton equivalent with respect to the...Ch. 4 - Prob. 66PCh. 4 - Find the Thévenin equivalent with respect to the...Ch. 4 - Prob. 68PCh. 4 - A Thévenin equivalent can also be determined from...Ch. 4 - Prob. 70PCh. 4 - Prob. 71PCh. 4 - Prob. 72PCh. 4 - The Wheatstone bridge in the circuit shown in Fig....Ch. 4 - Prob. 74PCh. 4 - Find the Norton equivalent with respect to the...Ch. 4 - Prob. 76PCh. 4 - Prob. 77PCh. 4 - Find the Thévenin equivalent with respect to the...Ch. 4 - Find the Thévenin equivalent with respect to the...Ch. 4 - Prob. 80PCh. 4 - Find the Norton equivalent with respect to the...Ch. 4 - The variable resistor in the circuit in Fig. P4.82...Ch. 4 - Prob. 83PCh. 4 - a) Calculate the power delivered for each value of...Ch. 4 - Find the value of the variable resistor Ro in the...Ch. 4 - A variable resistor R0 is connected across the...Ch. 4 - The variable resistor (R0) in the circuit in Fig....Ch. 4 - The variable resistor in the circuit in Fig. P4.91...Ch. 4 - The variable resistor (RL) in the circuit in Fig....Ch. 4 - The variable resistor (RO) in the circuit in Fig....Ch. 4 - In the circuit in Fig. P4.92, before the 5 mA...Ch. 4 - Use the principle of superposition to find the...Ch. 4 -
Use superposition to solve for and υ0 in the...Ch. 4 - Prob. 95PCh. 4 - Use the principle of superposition to find the...Ch. 4 - Prob. 97PCh. 4 - Use the principle of superposition to find the...Ch. 4 - Assume your supervisor has asked you to determine...Ch. 4 - Prob. 100PCh. 4 - Prob. 101PCh. 4 - Prob. 102PCh. 4 - Laboratory measurements or a dc voltage source...Ch. 4 - Prob. 104PCh. 4 - Prob. 105PCh. 4 - Repeat Problem 4.105 if Ig2 increases to 17 A and...Ch. 4 - Prob. 107PCh. 4 - Use the results given in Table 4.2 to predict the...
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