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 5.70HP
To determine
Thedamping level of the circuit, and the capacitance of the circuit that results in the critical damping of the circuit.
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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. An RC circuit has an emf given by 400 cos2t volts, a resistance of 100 ohms and a capacitance of 0.01 Farad. Initially there is no charge on the capacitor. Find the current in the circuit after 0.5 second.
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-
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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- 2 Determine vc(t) for t > 0. The voltage across the capacitor in Figure P5.32 just before the switch is changed is given below. vc(0-) = -7 V I, = 17 mA C = 0.55 µF R = 7 k2 R2 = 3.3 k2 t= 0 R2 R1 CVct)arrow_forward7 Find the voltage across C in the circuit of Figure P5.57 for t> 0. Let G = 5 µF; C = 10 µF. Assume the capacitors are initially uncharged. 12 19 2 ww t= 0 10 v(* C2arrow_forward6 Find the maximum value of v(t) for t > 0 in the circuit of Figure P5.76 if the circuit is in steady state at t = 0-. 4Ω 1Η 12 V t= 0 1/4 Farrow_forward
- RC Circuits in Applications of First-OrderDifferential Equations A 1-F capacitor is connected in series with a 6-ohm resistor. If the connection is energized from a 9-V DC source, determine the voltage (in volts) across the capacitor for a long time. The initial current is 100 mC.arrow_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_forward4 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 R2arrow_forward
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