Fundamentals of Electric Circuits
6th Edition
ISBN: 9780078028229
Author: Charles K Alexander, Matthew Sadiku
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 5, Problem 71P
Determine vo in the op amp circuit of Fig. 5.97.
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5.39 For the op amp circuit in Fig. 5.76, determine the
value of v2 in order to make v, = -16.5 V.
10 k2
50 k2
-3 V O
20 k2
V2 O
+
50 k2
5 V o
5.59 In the op amp circuit of Fig. 5.86, determine the
voltage gain v,/vg. Take R = 10 k2.
2R
4R
R
R
Vs
5.39
For the op amp circuit in Fig. 5.74, determine the
value of v2 in order to make vo = -16.5 V.
10 ΚΩ
+2VO www
20 ΚΩ
22 OM
50 ΚΩ
-1 V O www
Ans: V2 = 3 volts
50 ΚΩ
www
Vo
Chapter 5 Solutions
Fundamentals of Electric Circuits
Ch. 5.2 - If the same 741 op amp in Example 5.1 is used in...Ch. 5.3 - Repeat Example 5.1 using the ideal op amp model....Ch. 5.4 - Practice Problem 5.3 Figure 5.13 For Practice...Ch. 5.4 - Two kinds of current-to-voltage converters (also...Ch. 5.5 - Calculate vo in the circuit of Fig. 5.20. Answer:...Ch. 5.6 - Practice Problem 5.6 Find vo and io in the op amp...Ch. 5.7 - Design a difference amplifier with gain 7.5....Ch. 5.7 - Obtain io in the instrumentation amplifier circuit...Ch. 5.8 - Practice Problem 5.9 Figure 5.30 For Practice...Ch. 5.8 - If v1 = 5 V and v2 = 5 V, find vo in the op amp...
Ch. 5.9 - Rework Practice Prob. 5.1 using PSpice. If the...Ch. 5.10 - A three-bit DAC is shown in Fig. 5.37. (a)...Ch. 5.10 - Determine the value of the external gain-setting...Ch. 5 - The two input terminals of an op amp are labeled...Ch. 5 - For an ideal op amp, which of the following...Ch. 5 - For the circuit in Fig. 5.40, voltage vo is: (a)6...Ch. 5 - For the circuit in Fig. 5.40, current ix is:...Ch. 5 - If vs = 0 in the circuit of Fig. 5.41, current io...Ch. 5 - If vs = 8 mV in the circuit of Fig. 5.41, the...Ch. 5 - Refer to Fig. 5.41. If vs = 8 mV, voltage va is:...Ch. 5 - The power absorbed by the 4-k resistor in Fig....Ch. 5 - Which of these amplifiers is used in a...Ch. 5 - Difference amplifiers are used in (please check...Ch. 5 - The equivalent model of a certain op amp is shown...Ch. 5 - The open-loop gain of an op amp is 50,000....Ch. 5 - Determine the voltage input to the inverting...Ch. 5 - The output voltage of an op amp is 4 V when the...Ch. 5 - For the op amp circuit of Fig. 5.44, the op amp...Ch. 5 - Using the same parameters for the 741 op amp in...Ch. 5 - 5.7 The op amp in Fig. 5.46 has Ri = 100 k, Ro =...Ch. 5 - Obtain vo for each of the op amp circuits in Fig....Ch. 5 - Determine vo for each of the op amp circuits in...Ch. 5 - Prob. 10PCh. 5 - Using Fig. 5.50, design a problem to help other...Ch. 5 - Calculate the voltage ratio vo/vs for the op amp...Ch. 5 - Find vo and io in the circuit of Fig. 5.52. Figure...Ch. 5 - Determine the output voltage vo in the circuit of...Ch. 5 - (a)Determine the ratio vo/is in the op amp circuit...Ch. 5 - Using Fig. 5.55, design a problem to help students...Ch. 5 - Prob. 17PCh. 5 - For the circuit shown in Figure 5.57, solve for...Ch. 5 - Determine io in the circuit of Fig. 5.58. Figure...Ch. 5 - In the circuit of Fig. 5.59, calculate vo of vs =...Ch. 5 - Calculate vo in the op amp circuit of Fig. 5.60....Ch. 5 - Design an inverting amplifier with a gain of 15.Ch. 5 - For the op amp circuit in Fig. 5.61, find the...Ch. 5 - In the circuit shown in Fig. 5.62, find k in the...Ch. 5 - Calculate vo in the op amp circuit of Fig. 5.63....Ch. 5 - Using Fig. 5.64, design a problem to help other...Ch. 5 - Find vo in the op amp circuit of Fig. 5.65. Figure...Ch. 5 - Prob. 28PCh. 5 - Determine the voltage gain vo/vi of the op amp...Ch. 5 - In the circuit shown in Fig. 5.68, find ix and the...Ch. 5 - For the circuit in Fig. 5.69, find ix. Figure 5.69...Ch. 5 - Calculate ix and vo in the circuit of Fig. 5.70....Ch. 5 - Refer to the op amp circuit in Fig. 5.71....Ch. 5 - Given the op amp circuit shown in Fig. 5.72,...Ch. 5 - Design a noninverting amplifier with a gain of...Ch. 5 - For the circuit shown in Fig. 5.73, find the...Ch. 5 - Determine the output of the summing amplifier in...Ch. 5 - Using Fig. 5.75, design a problem to help other...Ch. 5 - For the op amp circuit in Fig. 5.76, determine the...Ch. 5 - Referring to the circuit shown in Fig. 5.77,...Ch. 5 - An averaging amplifier is a summer that provides...Ch. 5 - The feedback resistor of a three-input averaging...Ch. 5 - The feedback resistor of a five-input averaging...Ch. 5 - Show that the output voltage vo of the circuit in...Ch. 5 - Design an op amp circuit to perform the following...Ch. 5 - Using only two op amps, design a circuit to solve...Ch. 5 - The circuit in Fig. 5.79 is for a difference...Ch. 5 - The circuit in Fig. 5.80 is a differential...Ch. 5 - Design a difference amplifier to have a gain of 4...Ch. 5 - Design a circuit to amplify the difference between...Ch. 5 - Using two op amps, design a subtractor.Ch. 5 - Design an op amp circuit such that vo = 4v1 + 6v2 ...Ch. 5 - The ordinary difference amplifier for fixed-gain...Ch. 5 - Determine the voltage transfer ratio vovs in the...Ch. 5 - In a certain electronic device, a three-stage...Ch. 5 - Using Fig. 5.83, design a problem to help other...Ch. 5 - Find vo in the op amp circuit of Fig. 5.84.Ch. 5 - Calculate io in the op amp circuit of Fig. 5.85....Ch. 5 - In the op amp circuit of Fig. 5.86, determine the...Ch. 5 - Calculate vo/vi in the op amp circuit of Fig....Ch. 5 - Determine vo in the circuit of Fig. 5.88. Figure...Ch. 5 - Obtain the closed-loop voltage gain vo/vi of the...Ch. 5 - Determine the gain vovi of the circuit in Fig....Ch. 5 - For the op amp circuit shown in Fig. 5.91, find...Ch. 5 - Find vo in the op amp circuit of Fig. 5.92.Ch. 5 - For the circuit in Fig. 5.93, find vo.Ch. 5 - Obtain the output vo in the circuit of Fig. 5.94....Ch. 5 - Find vo in the circuit of Fig. 5.95, assuming that...Ch. 5 - Find vo in the circuit of Fig. 5.95, assuming that...Ch. 5 - Determine vo in the op amp circuit of Fig. 5.96.Ch. 5 - Determine vo in the op amp circuit of Fig. 5.97.Ch. 5 - Find the load voltage vL in the circuit of Fig....Ch. 5 - Determine the load voltage vL in the circuit of...Ch. 5 - Find io in the op amp circuit of Fig. 5.100....Ch. 5 - Rework Example 5.11 using the nonideal op amp...Ch. 5 - Solve Prob. 5.19 using PSpice or MultiSim and op...Ch. 5 - Solve Prob. 5.48 using PSpice or MultiSim and op...Ch. 5 - Use PSpice or MultiSim to obtain vo in the circuit...Ch. 5 - Determine vo in the op amp circuit of Fig. 5.102,...Ch. 5 - Use PSpice or MultiSim to solve Prob. 5.70....Ch. 5 - Use PSpice or MultiSim to verify the results in...Ch. 5 - Prob. 82PCh. 5 - Design a six-bit digital-to-analog converter. (a)...Ch. 5 - A four-bit R-2R ladder DAC is presented in Fig....Ch. 5 - In the op amp circuit of Fig. 5.104, find the...Ch. 5 - Design a voltage controlled ideal current source...Ch. 5 - Figure 5.105 displays a two-op-amp instrumentation...Ch. 5 - Figure 5.106 shows an instrumentation amplifier...Ch. 5 - Design a circuit that provides a relationship...Ch. 5 - The op amp circuit in Fig. 5.107 is a current...Ch. 5 - A noninverting current amplifier is portrayed in...Ch. 5 - Refer to the bridge amplifier shown in Fig. 5.109....Ch. 5 - A voltage-to-current converter is shown in Fig....
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- 5.71 Determine v, in the op amp circuit of Fig. 5.97. 20 k2 100 k2 5 k2 ww 40 k2 ww ww 80 k2 2 V 10 kΩ 20 k2 10 k2 ww 3 V 50 k2 30 k2 wwarrow_forwardHW25 5.57 Find v, in the op amp circuit of Fig. 5.84. 50 ΚΩ 100 kΩ 100 kΩ ww 25 k2 V;1 o ww ww ww 100 k2 50 k2 50 k2arrow_forwardSolve for V2 given the value of V0 and assuming the opamp is idealarrow_forward
- HW26 5.70 Determine v, in the op amp circuit of Fig. 5.96. 30 ΚΩ 40 kQ ww ww 10 ΚΩ A 20 k2 ww- 1V 60 kQ 10 k2 ww 10 k2 2 V 20 Ω w 10 k2 ww В 3V 10 k2 4V 14 wwHarrow_forward5.74 Find i, in the op amp circuit of Fig. 5.100. 0.9 V 10 ΚΩ Μ 100 ΚΩ Μ 20 ΚΩ 32 ΚΩ 1.6 ΚΩ 0.6 Varrow_forward5.28 Find i, in the op amp circuit of Fig. 5.66. 50 k2 10 k2 0.4 V 20 k2arrow_forward
- Given the op amp circuit shown in Fig. 5.82, determine the value of R that will make vo = 50 ΚΩ -4 mV o-WWW +1 mV o-WWW 50 ΚΩ www 100 ΚΩ www 100 ΚΩ Ans: Vo' = 10 mV; R = 120 k vo R 40 ΚΩ = 40 mV. O + Voarrow_forwardHW24 5.54 Determine the voltage transfer ratio və/v, in the op amp circuit of Fig. 5.82, where R = 10 kN. R R wwarrow_forward5.25 Calculate v, in the op amp circuit of Fig. 5.63. 12 k2 + 15 V 20 k2arrow_forward
- 5.4. Determine Vout in the following circuits with R, = R, = R, = 1 k2, V, = 10 V, and V, = 5 V. Assume ideal op amp behavior. R3 Vout RỊ V2 R2 (a) Vị R3 Vout R1 V2 R3 R2arrow_forward5.21 Calculate v, in the op amp circuit of Fig. 5.60. 10 k2 4 k2 + + Vo 2 V 4 Varrow_forward5.4 Cascaded Op Amp (2) Example 6 Find v, and i, in the circuit shown below. 20 mV www 12 ΚΩ 3 ΚΩ a *Refer to in-class illustration, textbook 10 ΚΩ 4 ΚΩ Vo Ans: 350mV, 25µA 19arrow_forward
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