Engineering Circuit Analysis
9th Edition
ISBN: 9780073545516
Author: Hayt, William H. (william Hart), Jr, Kemmerly, Jack E. (jack Ellsworth), Durbin, Steven M.
Publisher: Mcgraw-hill Education,
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Chapter 8, Problem 7E
(a)
To determine
Find the circuit time constant.
(b)
To determine
Find the expression for
(c)
To determine
Find the power dissipated by the
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For the circuit shown, I-20 mA, R₁ =10000 2, R2 =2000 Q, R3 -2000 Q, R₁-6000 2, Vcc 5 V and the
OPAMP is ideal with regions of operation are considered.
The output current lo in mA is (choose the closet value):
R₂
Is
R₁
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VCC
-VCC
The relative tolerance for this problem is 1 %.
-0.458
-0.833
6.667
-6.667
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0.833
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R3
w
RL
For the circuit shown, let R₁-4, R2-50, R3-2, R4-77 and Vin-18.
Find the current I₁ and voltage Vo as follows:
Use op-amp building blocks to determine the voltage Vo1: V01 =
Then use Vo1 to find the current 11: 1₁ =
Find the voltage Vo: Vo=
R1
www
Vin
R₂
ww
V01 R3
The relative tolerance for this problem is 9 %.
+
R4
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For the circuit shown, let Vs1 = 13, Vs2 = 7 R1-10, R2= 50, assume ideal-op-amp, and find
• The current Is
• The output voltage Vo=
VSI
A
S
R₁
ww
1 R₂
www
V₁₂
+
V
Chapter 8 Solutions
Engineering Circuit Analysis
Ch. 8.1 - For the circuit in Fig. 8.2, what value of...Ch. 8.1 - Noting carefully how the circuit changes once the...Ch. 8.2 - In a source-free series RC circuit, find the...Ch. 8.3 - Prob. 4PCh. 8.3 - Prob. 5PCh. 8.4 - Prob. 6PCh. 8.4 - Prob. 7PCh. 8.4 - Prob. 8PCh. 8.5 - Evaluate each of the following at t = 0.8: (a)...Ch. 8.6 - For the circuit of Fig. 8.37, find vc(t) at t...
Ch. 8.7 - Prob. 11PCh. 8.7 - The voltage source 60 40u(t) V is in series with...Ch. 8.7 - Prob. 13PCh. 8.8 - Prob. 14PCh. 8.8 - Prob. 15PCh. 8 - A source-free RC circuit has R = 4 k and C = 22 F,...Ch. 8 - A source-free RC circuit has v(0) = 12 V and R =...Ch. 8 - The resistor in the circuit of Fig. 8.51 has been...Ch. 8 - Prob. 4ECh. 8 - Prob. 5ECh. 8 - Prob. 6ECh. 8 - Prob. 7ECh. 8 - Prob. 8ECh. 8 - Prob. 9ECh. 8 - The switch in Fig. 8.56 has been closed for a long...Ch. 8 - For the circuit in Fig. 8.56, find (a) the total...Ch. 8 - Design a capacitor-based circuit that can achieve...Ch. 8 - (a) Graph the function f (t) = 10e2t over the...Ch. 8 - The current i(t) flowing through a 1 k resistor is...Ch. 8 - Radiocarbon dating has a similar exponential time...Ch. 8 - For the circuit of Fig. 8.4, compute the time...Ch. 8 - Design a circuit which will produce a current of 1...Ch. 8 - Prob. 18ECh. 8 - Prob. 19ECh. 8 - Referring to the circuit shown in Fig. 8.11,...Ch. 8 - Prob. 21ECh. 8 - With the assumption that the switch in the circuit...Ch. 8 - The switch in Fig. 8.57 has been closed since...Ch. 8 - The switch in the circuit of Fig. 8.58 has been...Ch. 8 - Assuming the switch initially has been open for a...Ch. 8 - (a) Obtain an expression for v(t), the voltage...Ch. 8 - For the circuit of Fig. 8.61, determine ix, iL,...Ch. 8 - Prob. 28ECh. 8 - Prob. 29ECh. 8 - Prob. 30ECh. 8 - Prob. 31ECh. 8 - (a) Obtain an expression for vx as labeled in the...Ch. 8 - Prob. 33ECh. 8 - Prob. 34ECh. 8 - Prob. 35ECh. 8 - Prob. 36ECh. 8 - Prob. 37ECh. 8 - The switch in Fig. 8.70 is moved from A to B at t...Ch. 8 - Prob. 39ECh. 8 - Prob. 40ECh. 8 - Evaluate the following functions at t = 1, 0, and...Ch. 8 - Prob. 42ECh. 8 - Prob. 43ECh. 8 - Prob. 44ECh. 8 - You can use MATLAB to represent the unit-step...Ch. 8 - With reference to the circuit depicted in Fig....Ch. 8 - For the circuit given in Fig. 8.75, (a) determine...Ch. 8 - Prob. 48ECh. 8 - Prob. 49ECh. 8 - You build a portable solar charging circuit...Ch. 8 - The switch in the circuit of Fig. 8.78 has been...Ch. 8 - The switch in the circuit of Fig. 8.78 has been...Ch. 8 - Prob. 53ECh. 8 - Prob. 54ECh. 8 - Prob. 55ECh. 8 - For the circuit represented in Fig. 8.82, (a)...Ch. 8 - Prob. 58ECh. 8 - Prob. 59ECh. 8 - For the circuit given in Fig. 8.85, (a) determine...Ch. 8 - The circuit depicted in Fig. 8.86 contains two...Ch. 8 - Prob. 62ECh. 8 - Prob. 63ECh. 8 - A series RL circuit has a voltage that steps from...Ch. 8 - For the two-source circuit of Fig. 8.89, note that...Ch. 8 - (a) Obtain an expression for iL as labeled in Fig....Ch. 8 - Obtain an expression for i(t) as labeled in the...Ch. 8 - Obtain an expression for i1 as indicated in Fig....Ch. 8 - Plot the current i(t) in Fig. 8.93 if (a) R = 10 ;...Ch. 8 - A dc motor can be modeled as a series RL circuit...Ch. 8 - Prob. 71ECh. 8 - Prob. 72ECh. 8 - A series RC sequentially switched circuit has R =...Ch. 8 - Refer to the circuit of Fig. 8.95, which contains...Ch. 8 - In the circuit of Fig. 8.95, a 3 mF capacitor is...Ch. 8 - Prob. 78E
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- For the circuit shown, let R₁ =16 Q, R₂ =48 2, R3 = 28 2, R4 =84 02, R5 -2002, R6 -80 2, and V₁ =4 mV. Assume ideal op-amp, find (round your answer to three digits) : Va= (MV) Vb = (MV) (mA) Vout = (MV) R₁ R₂ V₁ + R3 Vb W The relative tolerance for this problem is 7 %. ww R4 24 R5 55 R6 VOUTarrow_forwardFor the circuit shown, find the voltage Vo and current l。. Let R₁=8, R2=1, R3-11 and V₂-3. V S (+1 || w R₂ R1 + R3 Vo The voltage Vo is: The current lo is: The relative tolerance for this problem is 3 %.arrow_forwardFor the circuit shown, find currents 11, 12, 13, and the voltage Vo. Assume ideal op-amp, and let R₁=3, R2-40, Ro=85 and 1-6 The current I₁ is: The current 12 is: The current 13 is: The voltage Vo is: R₂ w R₁ 13 w Roarrow_forward
- For the circuit shown, let v₂ = 9, R₁=86, R2= 15, R3 =7, assume ideal-op-amp, and find • The current l₂ = • Voltage gain, Av= Vo/Vs= • The output voltage vo = A US 1+ 1. R₁ R₂ R3 10 +arrow_forwardFor the op-amp circuit shown, find the voltage Vo, and the current lo. Let R₁=8, R2=58, R3-27 and V₂-101. R1 + R₂ ww + V + The voltage Vo The current lo = = The relative tolerance for this problem is 3 % R3arrow_forwardThe circuit shown in Fig. 14.98 has the impedance Z(s) = 1,000(s+1) (s+1+j50)(s+1 – j50) ' s=j@ Find: (a) the values of R, L, C, and G (b) the element values that will raise the resonant frequency by a factor of 103 by frequency scaling Z(s) Figure 14.98 For Prob. 14.81. R 7arrow_forward
- Chapter 14, Problem 57. Determine the center frequency and bandwidth of the bandpass filters in Fig. 14.88. 1 F ΙΩ ww V. (+ 1 F 10 V 1 H m (a) (b) ΙΩ ww ΙΩ 1HV Figure 14.88 For Prob. 14.57.arrow_forwardChapter 14, Problem 43. Calculate the resonant frequency of each of the circuits in Fig. 14.82. C (a) Figure 14.82 For Prob. 14.43. (b) C Larrow_forwardChapter 14, Problem 69. end Design the filter in Fig. 14.94 to meet the following requirements: (a) It must attenuate a signal at 2 kHz by 3 dB compared with its value at 10 MHz. (b) It must provide a steady-state output of v。 (t) input v, (t)=4sin(2 × 108t) V. = 10 sin(2x 108t+ 180°) V for an Rf ww R ww C 1+ Vs Figure 14.94 For Prob. 14.69.arrow_forward
- Chapter 14, Problem 15. Construct the Bode magnitude and phase plots for 40(s+1) H(s) (s + 2)(s+10) s=j@arrow_forwardA series RLC network has R = 2 kQ, L = 40 mH, and C = 1 μ F. Calculate the impedance at resonance and at one-fourth, one-half, twice, and four times the resonant frequency.arrow_forwardChapter 14, Problem 5. For each of the circuits shown in Fig. 14.72, find H(s) = V。 (s)/V¸(s). R www V. R L Vo Vs m R (a) www (b) Figure 14.72 For Prob. 14.5. + CV₂arrow_forward
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