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 5, Problem 5.14HP
Determine the initial and final conditions on
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57. The Thévenin equivalent of a two-terminal
network is shown in Figure P5.87. The fre-
quency is f = 60 Hz. We wish to connect a
load across terminals a-b that consists of a
resistance and a capacitance in parallel such
that the power delivered to the resistance is
maximized. Find the value of the resistance
and the value of the capacitance.
Z, = 10 +j5 Q
o a
V, = 100/0°
V
Figure P5.87
Determine the initial and final conditions for thecircuit of Figure P5.52
In the circuit of Figure P5.49, the switch changesposition at t = 0. At what time will the current throughthe inductor be 5 A? Plot iL(t).
Chapter 5 Solutions
Principles and Applications of Electrical Engineering
Ch. 5 - Write the differential equations fort t0 for iL...Ch. 5 - Write the differential equation fort t0 for vc in...Ch. 5 - Write the differential equation fort t0 for iC in...Ch. 5 - Write the differential equation for t0 for iL in...Ch. 5 - Write the differential equation for t0 for vc in...Ch. 5 - Write the differential equations for t0 for iC and...Ch. 5 - Prob. 5.7HPCh. 5 - Write the differential equation for t0 for iC in...Ch. 5 - Write the differential equation for t0 for iL in...Ch. 5 - Write the differential equations for: t0 for iL...
Ch. 5 - Determine the initial and final conditions on iL...Ch. 5 - Determine the initial and final conditions on vc...Ch. 5 - Determine the initial and final conditions on iC...Ch. 5 - Determine the initial and final conditions on iL...Ch. 5 - Determine the initial and final conditions on vc...Ch. 5 - Determine the initial and final conditions on iC...Ch. 5 - Determine the initial and final conditions on vC...Ch. 5 - Prob. 5.18HPCh. 5 - Prob. 5.19HPCh. 5 - Determine the initial and final conditions on iL...Ch. 5 - At t=0 , just before the switch is opened, the...Ch. 5 - Prob. 5.22HPCh. 5 - Determine the current ic through the capacitor...Ch. 5 - Prob. 5.24HPCh. 5 - Prob. 5.25HPCh. 5 - Assume that steady-state conditions exist in...Ch. 5 - Assume that steady-state conditions exist in the...Ch. 5 - Prob. 5.28HPCh. 5 - Assume that steady-state conditions exist in the...Ch. 5 - Find the Thévenin equivalent network seen by the...Ch. 5 - Prob. 5.31HPCh. 5 - Prob. 5.32HPCh. 5 - Prob. 5.33HPCh. 5 - For t0 , the circuit shown in Figure P5.34 is at...Ch. 5 - The circuit in Figure P5.35 is a simple model of...Ch. 5 - Prob. 5.36HPCh. 5 - Determine the current iC through the capacitor in...Ch. 5 - Determine the voltage vL across the inductor in...Ch. 5 - Prob. 5.39HPCh. 5 - For t0 , the circuit shown in Figure P5.39 is at...Ch. 5 - Prob. 5.41HPCh. 5 - Prob. 5.42HPCh. 5 - Prob. 5.43HPCh. 5 - Prob. 5.44HPCh. 5 - For the circuit shown in Figure P5.41, assume that...Ch. 5 - Prob. 5.46HPCh. 5 - Prob. 5.47HPCh. 5 - For the circuit in Figure P5.47, assume...Ch. 5 - In the circuit in Figure P5.49, how long after the...Ch. 5 - Refer to Figure P5.49 and assume that the switch...Ch. 5 - The circuit in Figure P5.51 includes a...Ch. 5 - At t=0 the switch in the circuit in Figure...Ch. 5 - Prob. 5.53HPCh. 5 - The analogy between electrical and thermal systems...Ch. 5 - The burner and pot of Problem 5.54 can be modeled...Ch. 5 - Prob. 5.56HPCh. 5 - Prob. 5.57HPCh. 5 - Prob. 5.58HPCh. 5 - The circuit in Figure P5.59 models the charging...Ch. 5 - Prob. 5.60HPCh. 5 - In the circuit shown in Figure P5.61:...Ch. 5 - Prob. 5.62HPCh. 5 - If the switch shown in Figure P5.63 is closed at...Ch. 5 - Prob. 5.64HPCh. 5 - Prob. 5.65HPCh. 5 - Prob. 5.66HPCh. 5 - Prob. 5.67HPCh. 5 - Prob. 5.68HPCh. 5 - Assume the switch in the circuit in Figure...Ch. 5 - Prob. 5.70HPCh. 5 - Prob. 5.71HPCh. 5 - Prob. 5.72HPCh. 5 - Prob. 5.73HPCh. 5 - Prob. 5.74HPCh. 5 - Prob. 5.75HPCh. 5 - Prob. 5.76HPCh. 5 - Prob. 5.77HPCh. 5 - Prob. 5.78HPCh. 5 - Prob. 5.79HPCh. 5 - Assume the circuit in Figure P5.80 is in DC steady...Ch. 5 - Prob. 5.81HPCh. 5 - For t0 , determine v in Figure P5.82, assuming DC...
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- 4 We use an analogy between electric circuits and thermal conduction to analyze the behavior of a pot heating on an electric stove. We can model the heating element as shown in the circuit of Figure P5.54. Find the “heat capacity" of the burner, Cs, if the burner reaches 90 percent of the desired temperature in 10 seconds. Is R5 Cs C3= heat capacity of bumer R,= heat loss of burner =1.5 2 wwarrow_forwardFind the phasors for the current and the voltages for the circuit shown in Figure P5.45. Construct a phasor diagram showing Vs, I, VR, and VC. What is the phase relationship between Vs and Iarrow_forwardSolve for the node voltages shown in Figure P5.53.arrow_forward
- 5.11 Determine the initial and final conditions for the circuit of Figure P5.21.arrow_forwardConsider the circuit shown in Figure P5.49. Find the phasors Is, V, IR, IL and IC. Compare the peak value of iL(t) with the peak value of is(t). Do you find the answer surprising? Explain.arrow_forwardB Determine the voltage across the inductor just before and just after the switch is changed in Figure P5.38. Assume steady-state conditions exist for t < 0. Vs = 12 V Rs = 0.24 2 R = 33 k2 L = 100 mH t= 0 Rs + EIarrow_forward
- P5.43. Find the complex impedance of the network shown in Figure P5.43 for w=500. Repeat for w= 1000 and w= 2000.arrow_forwardSolve for the mesh currents shown in Figure P5.54.arrow_forwardAssume the circuit of Figure P5.70 initially storesno energy. The switch is closed at t − 0. Finda. Capacitor voltage as t approaches infinityb. Capacitor voltage after 20 μsc. Maximum capacitor voltagearrow_forward
- Find the phasors for the voltage and the currents for the circuit shown in Figure P5.48. Construct a phasor diagram showing Is, V, IR and IC. What is the phase relationship between V and Is ?arrow_forward3 Determine the current through the capacitor just before and just after the switch is closed in Figure P5.23. Assume steady-state conditions for t < 0. C = 0.5 µF V = 12 V R = 0.68 k2 R2 = 1.8 k2 t= 0 R2arrow_forwardP5.6. A sinusoidal voltage has a peak value of 15 V, has a frequency of 125 Hz, and crosses zero with positive slope at t =1 ms. Write an expression for the voltage.arrow_forward
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