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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Chapter 5, Problem 5.74HP
To determine
The values of
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8 For t > 0, the circuit shown in Figure P5.22 is at
steady state. The switch is changed as shown at t = 0.
Vsi = 35 V
C = 11 µF
Vsz = 130 V
R = 17 k2
R = 7 k2
R = 23 k2
Determine the time constant of the circuit for t> 0.
3 Assume that the circuit shown in Figure P5.73 is
underdamped and that the circuit initially has no
energy stored. It has been observed that after the
switch is closed at t = 0, the capacitor voltage reaches
an initial peak value of 70 V when t = 57/3 µs and a
second peak value of 53.2 V when t = 57 us, and it
eventually approaches a steady-state value of 50 V. If
C = 1.6 nF, what are the values of Rand L?
t= 0
ww
4 If the switch in the circuit shown in Figure P5.64 is
closed at t = 0 and
Vs = 12 V
C = 130 µF
R = 2.3 k2
R, = 7 k2
L= 30 mH
determine the current through the inductor and the
voltage across the capacitor and across Rị after the
circuit has returned to a steady state.
t= 0
R1
Vs R2
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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- B 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_forwardFor the circuit of Figure P5.70, determine if it isunderdamped or overdamped. Find also the capacitorvalue that results in critical dampingarrow_forward6 Determine the voltage across the inductor just before and just after the switch is changed in Figure P5.26. Assume steady-state conditions exist for t < 0. Vs = 12 V R, = 0.7 2 R = 22 k2 L= 100 mH 1=0 R, R1arrow_forward
- '7 For t> 0, determine for what value of t i = 2.5 A in the circuit of Figure P5.77 if the circuit is in steady state at t = 0-. 2Ω ww 40 V :20 3Ω wwarrow_forward7 Steady-state conditions exist in the circuit shown in Figure P5.27 at t < 0. The switch is closed at t = 0. V = 12 V R = 0.68 k2 R = 2.2 k2 R = 1.8 k2 C= 0.47 µF Determine the current through the capacitor at t = 0+, just after the switch is closed. ww. idt) R. t= 0 R1 Ry ww-arrow_forwardDescribe the steady-state similarities and differences of DC and AC circuits with purelyresistive elementsarrow_forward
- For t > 0, determine for what value of t v = 7.5 Vin the circuit of Figure P5.79 if the circuit is in steadystate at t = 0−.arrow_forwardGiven circuit below, use superposition to find voltage across the capacitor, vclt). Frequency is 100 Hz. 6kn 4kn reee zkn O SmA <45 Vc (t) DC a) Given circuit below and switch ciosed for long time, what is the value of Vc? 5mA 3 luk bị At0, switch is opened. Write a mathematical expression for Velt) after opening of the switch. Evaluate this voltage at te10 ms. Attach File Browse Local Fies rowie Conent Cotection 74°Farrow_forward1 Find v for t > O in the circuit of Figure P5.81 if the circuit is in steady state at t = 0-. t= 0 32 ww 12 V 0.8 HE 4 V 1/4 Farrow_forward
- 6 At t< 0, the circuit shown in Figure P5.66 is at steady state, and the voltage across the capacitor is +7 V. The switch is changed as shown at t= 0, and Vs = 12 V C= 3,300 µF R = 9.1 k2 R = 4.3 k2 R3 = 4.3 k2 L= 16 mH Determine the initial voltage across R2 just after the switch is changed. t=0 Le )V½ R R 2 R3 ww-arrow_forwardThe equation of the charge on the capacitor at any time t for an LRC series circuits is givenas a) Assume there is no initial charge and current, sketch the graph of the charge. b) What happen to the charge after a long time? c) State the transient and the steady state terms.arrow_forward=7 Determine the current through the capacitor just before and just after the switch is closed in Figure P5.37. Assume steady-state conditions for t < 0. V = 12 V C = 150 µF R = 400 m2 R2 = 2.2 k2 t = 0 R1 + SI +)arrow_forward
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