Electric Circuits (10th Edition)
10th Edition
ISBN: 9780133760033
Author: James W. Nilsson, Susan Riedel
Publisher: PEARSON
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Chapter 15, Problem 61P
To determine
Design a volume control circuit to give a maximum gain of
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Determine the equilibrium electron and hole concentrations inside a uniformly doped sample of Si
under the following conditions. (n; =1010/cm³ at 300K)
a) T 300 K, NA << ND, ND = 1015/cm³
b) T 300 K, NA = 9X1015/cm³, ND = 1016/cm³
c) T = 450 K, NA = 0, ND = 1014/cm³
d) T = 650 K, NA = 0, ND = 1014/cm³
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Chapter 15 Solutions
Electric Circuits (10th Edition)
Ch. 15.1 - Compute the values for R2 and C that yield a...Ch. 15.1 - Prob. 2APCh. 15.2 - Prob. 3APCh. 15.4 - Prob. 4APCh. 15.5 - Prob. 5APCh. 15.5 - Prob. 6APCh. 15 - Prob. 1PCh. 15 - Prob. 2PCh. 15 - Prob. 3PCh. 15 - Prob. 4P
Ch. 15 - Prob. 5PCh. 15 - Use the result of Problem 15.5 to find the...Ch. 15 - Repeat Problem 15.6, using the circuit shown in...Ch. 15 - Prob. 8PCh. 15 - Prob. 10PCh. 15 - Prob. 11PCh. 15 - Prob. 12PCh. 15 - Prob. 13PCh. 15 - Prob. 14PCh. 15 - Prob. 17PCh. 15 - Prob. 18PCh. 15 - Prob. 19PCh. 15 - Prob. 20PCh. 15 - Prob. 21PCh. 15 - Scale the inductor and capacitor in Fig. P9.66 so...Ch. 15 - Prob. 24PCh. 15 - Prob. 25PCh. 15 - Prob. 26PCh. 15 - Prob. 27PCh. 15 - Prob. 30PCh. 15 - Design a parallel band reject filter with a center...Ch. 15 - Show that the circuit in Fig. P15.32 behaves as a...Ch. 15 - For circuits of resistors, capacitors, Inductors,...Ch. 15 - Prob. 34PCh. 15 - Prob. 35PCh. 15 - Prob. 36PCh. 15 - Prob. 37PCh. 15 - Prob. 38PCh. 15 - Prob. 39PCh. 15 - Prob. 40PCh. 15 - Prob. 41PCh. 15 -
Using 250 nF capacitors and ideal op amps, design...Ch. 15 - Prob. 46PCh. 15 - Prob. 47PCh. 15 - Prob. 48PCh. 15 - Use 20 nF capacitors in the circuit in Fig. 15.27...Ch. 15 - The purpose of this problem is to guide you...Ch. 15 - Assume the circuit analyzed in Problem 15.48 is...Ch. 15 - The purpose of this problem is to develop the...Ch. 15 - Prob. 56PCh. 15 - Prob. 57PCh. 15 - Prob. 58PCh. 15 - Prob. 59PCh. 15 - Prob. 60PCh. 15 - Prob. 61PCh. 15 - Prob. 62PCh. 15 - Plot the maximum gain in decibels versus α when ω...Ch. 15 - Prob. 64P
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- b) A semiconductor is doped with an impurity concentration N such that N >> n; and all the impurities are ionized. Also, n = N and p = n2/N. Is the impurity a donor or an acceptor? Explain.arrow_forwardd) For a silicon sample maintained at T=300K, the Fermi level is located 0.259 eV above the intrinsic Fermi level. What are the hole and electron concentrations?arrow_forwarde) In a nondegenerate germanium sample maintained under equilibrium conditions near room temperature, it is known that n=10¹³/cm³, n = 2p, and NA 0. Determine n and ND.arrow_forward
- Solve fo the voltage across the 1kohm resistor using superposition for the three following cases: only V1 present, only V2 present, and both V1 and V2 present.arrow_forwardSemiconductor A has a band gap of 1eV, while semiconductor B has a band gap of 2eV. What is the ration of the intrinsic carrier concentrations in the two materials (n₁A/NB) at 300 K. Assume any differences in the carrier effective masses may be neglected.arrow_forwardc) The electron concentration in a piece of Si maintained at 300K under equilibrium conditions is 105/cm³. What is the hole concentration?arrow_forward
- 5. Represent the following system in state-space form. Write A, B, C and D clearly in your answer. d³y d²y dt3 - +5y=2u dt²arrow_forward3. Find the transfer function H(s) and frequency response H (w) of the following system whose differential equation is given by d¹y d³y +3. dy +5 dt4 dt3 dt - d²u du 4y = - 5 dt² dtarrow_forward1. Consider a plant that you want to control. The input u(t) and output y(t) of the plant are related by y(t) = 7 u(t) + w(t) where w(t) is an additive disturbance at the output which is bounded by -0.5 w(t) ≤0.5 for all time t. You want to build a controller so that the output follows a constant reference signal r(t) = where -15 ≤≤ 15. You will consider both open-loop and closed-loop for this problem. a) Sketch the block diagram of the plant. b) Please build an open-loop controller that sets the output to 7, assuming the disturbance is ignored. Please show your controller both as an equation and a block diagram. c) Say that you use the open-loop controller in part b, but now the disturbance w(t) is present. What is the maximum possible magnitude of error in the output for the reference signal? Suppose you have designed a feedback control for the plant where the controller has the form u(t) = K(r(t) − y(t)). Here K is the gain constant of the controller that you will design. d) Please…arrow_forward
- 2. Suppose the Laplace transform of a causal signal x(t) is given by s² +2 X(s) = S³ + 1 Using the lookup tables for standard Laplace transforms and the Laplace transform properties, find the Laplace transforms of the following signals. You do not need to simplify the expressions. a) x₁(t) = e² x(t) + 38(t − 1) − (t − 2)² u(t − 2) b) x2(t) = x(2t - 1) + et u(t − 2)arrow_forwardPlease explain in detail the steps to solve this. Thank youarrow_forward6. Answer the following questions. Take help from ChatGPT to answer these questions (if you need). But write the answers briefly using your own words with no more than two sentences and make sure you check whether ChatGPT is giving you the appropriate answers in our context. a) What is the difference between a regulator and a servo system? Which is harder to build? b) What are the advantages and drawbacks of manual control systems over automatic ones? c) Does transfer exist for the non-linear systems? d) Explain the convolution property of the Laplace transform. e) What are the advantages of using state-space representation?arrow_forward
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