Electric Circuits. (11th Edition)
11th Edition
ISBN: 9780134746968
Author: James W. Nilsson, Susan Riedel
Publisher: PEARSON
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Chapter 5, Problem 12P
a.
To determine
Mention the configuration of the given op amp circuit.
b.
To determine
Calculate the value of voltage
c.
To determine
Mention the range of
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A 50-HP, 600-V compound motor, taking 80 A, operates at a speed of 495 r.p.m. at full-load. If the flux
per pole is 9.1 x 106 Maxwells and the armature resistance is 0.01502, the field resistances are 0.006
ohms and 300 ohms. Calculate:
a. Field currents and the armature current
b. the counter emf
c. the rotational loss
Ans.[2A,78A,593.362 V,8982.236 W]
1. A 600-V, 150-HP, 600 r.p.m. d.c. series motor has an armature and series field resistance of 0.120 and
0.040, respectively. The full-load current is 200A.
(a) Find the back e.m.f. at full-load.
(b) Find the armature developed power and torque at full-load.
Ans. [568V, 1808.13 N.m]
Chapter 5 Solutions
Electric Circuits. (11th Edition)
Ch. 5.2 - Assume that the op amp in the circuit shown is...Ch. 5.3 - The source voltage vs in the circuit in Assessment...Ch. 5.4 - Find vo in the circuit shown if va = 0.1 V and vb...Ch. 5.5 - Assume that the op amp in the circuit shown is...Ch. 5.6 - In the difference amplifier shown, vb = 4.0 V....Ch. 5.6 - Suppose the 12kΩ resistor Rd in the difference...Ch. 5.7 - The inverting amplifier in the circuit shown has...Ch. 5 - The op amp in the circuit in Fig. P5.1 is ideal....Ch. 5 - Replace the 2.5 V source in the circuit in Fig....Ch. 5 - Find io in the circuit in Fig. P5.3 if the op amp...
Ch. 5 - The op amp in the circuit in Fig. P5.4 is...Ch. 5 - The op amp in the circuit in Fig. P5.5 is ideal....Ch. 5 - Find iL (in milliamperes) in the circuit in Fig....Ch. 5 - Prob. 7PCh. 5 - Design an inverting amplifier with a gain of 2.5,...Ch. 5 - Design an inverting amplifier with a gain of 4....Ch. 5 - The op amp in the circuit in Fig. P5.10 is...Ch. 5 - The op amp in the circuit shown in Fig. P5.11 is...Ch. 5 - The op amp in Fig. P5.12 is ideal.
What circuit...Ch. 5 - Design an inverting-summing amplifier using a 120...Ch. 5 - Prob. 14PCh. 5 - Design an inverting-summing amplifier so...Ch. 5 - The op amp in Fig. P5.16 is ideal. Find vo if va –...Ch. 5 - Prob. 17PCh. 5 - The op amp in the circuit of Fig. P5.18 is...Ch. 5 - Prob. 19PCh. 5 - The op amp in the circuit shown in Fig. P5.20 is...Ch. 5 - Prob. 21PCh. 5 - Prob. 22PCh. 5 - The op amp in the circuit of Fig. P5.23 is...Ch. 5 - The circuit in Fig. P5.24 is a noninverting...Ch. 5 - The op amp in the circuit of Fig. P5.25 is...Ch. 5 - Prob. 26PCh. 5 - Prob. 27PCh. 5 - Prob. 28PCh. 5 - Prob. 29PCh. 5 - Select the values of Rb and Rf in the circuit in...Ch. 5 - The op amp in the adder-subtracter circuit shown...Ch. 5 - In the difference amplifier shown in Fig. P5.32,...Ch. 5 - Prob. 33PCh. 5 - The op amp in the circuit of Fig. P5.34 is...Ch. 5 - Assume that the ideal op amp in the circuit seen...Ch. 5 - Prob. 37PCh. 5 - Show that when the ideal op amp in Fig. P5.38 is...Ch. 5 - The op amps in the circuit in Fig. P5.39 are...Ch. 5 - The two op amps in the circuit in Fig. P5.40 are...Ch. 5 - The circuit inside the shaded area in Fig. P5.41...Ch. 5 - Assume that the ideal op amp in the circuit in...Ch. 5 - Derive Eq. 5.31.
(5.31)
Ch. 5 - Prob. 44PCh. 5 - Prob. 45PCh. 5 - Repeat Problem 5.45 assuming an ideal op...Ch. 5 - Assume the input resistance of the op amp in Fig....Ch. 5 - Prob. 48PCh. 5 - Suppose the strain gages in the bridge in Fig....Ch. 5 - For the circuit shown in Fig. P5.50, show that if...Ch. 5 - Prob. 51PCh. 5 - Prob. 52PCh. 5 - Prob. 53P
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- 3. An electrical device shown below has the following depicted voltage and current definition. The current in and the voltage vin for a certain period is recorded as shown in the bottom picture. (1) In different periods from 0 to time T4, determine if the electrical device works as a load or a source. iin + iin Vin Electrical Device 0 T₁ T2 T3 ΤΑ t Vin T2 ΤΑ tarrow_forward1. A 220V d.c. shunt motor has a 5V brush drop, an armature resistance of 0.20, and a rated armature current of 40A. Calculate: (a) the counter-back e.m.f. (EC), (b) power developed by the armature (Pd) in watts (c) mechanical power developed by the armature in horsepower. Ans.[207V, 8280 W, 11.099hp]arrow_forwardTests are carried on 400 V, 60 Hz, Y-connected, wound rotor three-phase induction motor with the following test results: DC Test: 21 V, 43 A No Load Test: 400 V, 20 A, 1200 W, 60 Hz Blocked Rotor Test: 100 V, 44 A, 2700 W, 19 Hz Find R1, X1, R2, X2, and Xm of this motor? xxx₁ = 0.5xbm fy Pen Pd 51-5 NN (1-5) 1208 1 [10Marks] N wr Parrow_forward
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