Loose Leaf for Engineering Circuit Analysis Format: Loose-leaf
9th Edition
ISBN: 9781259989452
Author: Hayt
Publisher: Mcgraw Hill Publishers
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Chapter 7, Problem 47E
(a)
To determine
Find
(b)
To determine
Find the current
(c)
To determine
Find the current
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7.5 From the circuit in the figure, if the switch is touched at position a for a long time and then moved to touch position b at the time t = 0 Find i(t) when t > 0.
Determine the inductor current i(t) for t > 0 for the circuits in Fig. 7.119.
6 A
4Ω
3 H
Fig. 7.119
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Problem 1 (time constant in RC Circuits, Alexander 7.2)
120 Ω
12Ω
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50 V (+
80 Ω
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Figure P1
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Chapter 7 Solutions
Loose Leaf for Engineering Circuit Analysis Format: Loose-leaf
Ch. 7.1 - Determine the current flowing through a 5 mF...Ch. 7.1 - Prob. 2PCh. 7.1 - Prob. 3PCh. 7.2 - 7.4 The current through a 200 mH inductor is shown...Ch. 7.2 - The current waveform of Fig. 7.14a has equal rise...Ch. 7.2 - Prob. 6PCh. 7.2 - Let L = 25 mH for the inductor of Fig. 7.10. (a)...Ch. 7.3 - Find Ceq for the network of Fig. 7.23. FIGURE...Ch. 7.4 - If vC(t) = 4 cos 105t V in the circuit in Fig....Ch. 7.5 - Derive an expression for vout in terms of vs for...
Ch. 7.6 - Prob. 11PCh. 7 - Making use of the passive sign convention,...Ch. 7 - Prob. 2ECh. 7 - (a) If the voltage waveform depicted in Fig. 7.42...Ch. 7 - A capacitor is constructed from two brass plates,...Ch. 7 - Prob. 5ECh. 7 - Prob. 6ECh. 7 - Design a capacitor whose capacitance can be varied...Ch. 7 - Design a capacitor whose capacitance can be varied...Ch. 7 - Prob. 9ECh. 7 - Assuming the passive sign convention, sketch the...Ch. 7 - Prob. 11ECh. 7 - Prob. 12ECh. 7 - Prob. 13ECh. 7 - Calculate the power dissipated in the 40 resistor...Ch. 7 - Prob. 15ECh. 7 - Design a 30 nH inductor using 28 AWG solid soft...Ch. 7 - Prob. 17ECh. 7 - Prob. 18ECh. 7 - Prob. 19ECh. 7 - Prob. 20ECh. 7 - Calculate vL and iL for each of the circuits...Ch. 7 - The current waveform shown in Fig. 7.14 has a rise...Ch. 7 - Determine the inductor voltage which results from...Ch. 7 - Prob. 24ECh. 7 - The voltage across a 2 H inductor is given by vL =...Ch. 7 - Calculate the energy stored in a 1 nH inductor if...Ch. 7 - Determine the amount of energy stored in a 33 mH...Ch. 7 - Making the assumption that the circuits in Fig....Ch. 7 - Calculate the voltage labeled vx in Fig. 7.52,...Ch. 7 - Prob. 30ECh. 7 - Prob. 31ECh. 7 - Determine an equivalent inductance for the network...Ch. 7 - Using as many 1 nH inductors as you like, design...Ch. 7 - Compute the equivalent capacitance Ceq as labeled...Ch. 7 - Prob. 35ECh. 7 - Prob. 36ECh. 7 - Reduce the circuit depicted in Fig. 7.59 to as few...Ch. 7 - Refer to the network shown in Fig. 7.60 and find...Ch. 7 - Prob. 39ECh. 7 - Prob. 40ECh. 7 - Prob. 41ECh. 7 - Prob. 42ECh. 7 - Prob. 43ECh. 7 - Prob. 44ECh. 7 - Prob. 45ECh. 7 - Prob. 46ECh. 7 - Prob. 47ECh. 7 - Let vs = 100e80t V with no initial energy stored...Ch. 7 - Prob. 49ECh. 7 - Prob. 50ECh. 7 - Interchange the location of R1 and Cf in the...Ch. 7 - For the integrating amplifier circuit of Fig....Ch. 7 - Prob. 53ECh. 7 - For the circuit shown in Fig. 7.73, assume no...Ch. 7 - A new piece of equipment designed to make crystals...Ch. 7 - An altitude sensor on a weather balloon provides a...Ch. 7 - One problem satellites face is exposure to...Ch. 7 - The output of a velocity sensor attached to a...Ch. 7 - A floating sensor in a certain fuel tank is...Ch. 7 - (a) If Is = 3 sin t A, draw the exact dual of the...Ch. 7 - Draw the exact dual of the simple circuit shown in...Ch. 7 - (a) Draw the exact dual of the simple circuit...Ch. 7 - (a) Draw the exact dual of the simple circuit...Ch. 7 - Prob. 64ECh. 7 - Prob. 65ECh. 7 - Prob. 66ECh. 7 - Prob. 67ECh. 7 - Prob. 68ECh. 7 - Prob. 69ECh. 7 - Prob. 70ECh. 7 - For the circuit of Fig. 7.28, (a) sketch vout over...Ch. 7 - (a) Sketch the output function vout of the...Ch. 7 - For the circuit of Fig. 7.72, (a) sketch vout over...
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- 9. Problem 7.44: The switch has been in position a for a long time. At t = 0, the switch moves to position b. Calculate io for all t>0. 30 V 60 V 2 Farrow_forward7. Consider the circuit in Figure 7. Find the expression of v(t) for t>0 and plot v(t) versus time. Assume i(t = 0) = Io. R₁ www. L 0000 Figure 7. R₂arrow_forward7.7μF capacitor is charged by a 125V battery and then is disconnected from the battery. When this capacitor (C1) is then connected to a second (initially uncharged) capacitor, C2, the final voltage on each capacitor is 15V. What is the value of C2? [Hint: Charge is conserved.]arrow_forward
- 1. 7.21 The switch in the circuit has been in the left positionfor a long time. At t=0 it moves to the right position and stays there 3. c) Find the time constant of this circuit for t>0.arrow_forward1. 7.7 The switch in the circuit has been closed for a long time. At t=0 theswitch opens and stays open. Find the expression for vo(t) for t≥0.arrow_forwardThe switch in Fig. 7.43 has been in position A for a long time. At t = 0, the switch moves to B. Determine v(t) for t > 0 and calculate its value at t = 1 s and 4 s. 24 V 3 ΚΩ ww 5kQ2 t=0 + B 4kQ M 0.5 mF 30 Varrow_forward
- Find v(t) for t> O in the circuit of Fig. 7.44. Assume the switch has been open for a long time and is closed at t = 0. Calculate v(t) at t = 0.5. t = 0 2Ω 6Ω 15 V V = 7.5 V + > Iarrow_forwardConsider the circuit in Fig. 7.103. Given that v(0) = 10 V, find v, and vz for t > 0. %3D 3Ω ww 10 H3 20arrow_forwardThe switch in Fig. 7.43 has been in position A for a long time. Att = 0, the switch moves to B. Determine (r) for r>0 and calculate its value at t = 1 s and 4 s. 24 V 3 k 310 A 8 05 F 30 Varrow_forward
- 7.11 For the circuit in Fig. 7.91, find i, for t > 0. t = 0 the 4 2 4 H ell LiThe time to rea 40 perce 24 V (+ 4Ω 82 18.T Sug Figure 7.91 For Prob. 7.11.arrow_forwardCompute the equivalent capacitance Ceq as labeled in Fig. 7.55. HE HE 7 F 4 F Ceq 5 F FIGURE 7.55 1 F H6 8 F 5 F HE 2 F 2 F HE 12 Farrow_forwardThe switch in Figure 7 has been at position a for a long At t = 0, the switch moves to position b. For t > 0, with the aid of appropriate circuit diagram, determine the expression for voltage of capacitor, vC(t) current flows through the capacitor, iC(t).arrow_forward
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