HW9 Solution - Chapter 5, Problem 8. Obtain vo for each of...

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Chapter 5, Problem 8. Obtain v o for each of the op amp circuits in Fig. 5.47. Chapter 5, Solution 8. Figure 5.47 for Prob. 5.8 (a) If v a and v b are the voltages at the inverting and noninverting terminals of the op amp. v a = v b = 0 1mA = k 2 v 0 0 v 0 = -2.00V (b) Since v a = v b = 1V and i a = 0, no current flows through the 10 k Ω resistor. From Fig. (b), -v a + 2 + v 0 = 0 v 0 = v a - 2 = 1 - 2 = -1.00V - + - + 1V - + 2V 10 k Ω 2 k Ω i a v b v a + v o - (a) + v o - i a (b) 10 k Ω + v a - + - 2V 1
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Chapter 5, Problem 10. Find the gain v o /v s of the circuit in Fig. 5.49. Chapter 5, Solution 10. Since no current enters the op amp, the voltage at the input of the op amp is v s . Hence v s = v o 2 v 10 10 10 o = + s o v v = 2.00 Figure 5.49 for Prob. 5.10 2
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Chapter 5, Problem 13. Find v o and i o in the circuit of Fig. 5.52. Chapter 5, Solution 13. By voltage division, v a = V 9 . 0 ) 1 ( 100 90 = v b = 3 v v 150 50 o o = But v a = v b 9 . 0 3
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HW9 Solution - Chapter 5, Problem 8. Obtain vo for each of...

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