EBK NUMERICAL METHODS FOR ENGINEERS
7th Edition
ISBN: 8220100254147
Author: Chapra
Publisher: MCG
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Textbook Question
Chapter 12, Problem 28P
Electrical Engineering
Determine the currents for the circuit in Fig. P12.28.
FIGURE P12.28
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Define Resistance Proportional to Velocity ?
Question 5.1:
A thermopile is constructed with chromel-alumel materials. Five junctions are maintained at 400-C
and five junctions are maintained at 100°C. The output of the thermopile is connected to a
potentiometer. Answer the following questions:
a) Draw the equivalent circuit and indicate all the given information.
b) What is the voltage induced by the potentiometer?
Given:
Table 8.30
Temperature.
°C
-150
-100
<-50
<<-25
0
25
50
75
100
150
200
300
400
500
600
800
1000
1200
1500
1750
Thermal emf in absolute millivolts for commonly used thermocouple combinations, according to ITS(90)
(Reference junction of 0 C)¹
Copper vs.
Constantan (7)
-4.648
-3.379
-1.819
-0.940
0
0.992
2.036
3.132
4.279
6.704
9.288
14.862
20.872
Chromel vs.
Constantan (E)
-7.279
-5.237
-2,787
-1.432
0
1.495
3.048
4.657
6.319
9.789
13.421
21.036
28.946
37.005
45.093
61,017
76.373
Iron vs.
Constantan (
-6.500
-4.633
-2.431
-1.239
(
1.277
2.585
3.918
5.269
8.010
10.779
16.327
21.848
27.393
33.102
45.494
57.953…
14-Two wires have the same length and the same resistance. One is made from aluminum and the other
from copper. Obtain the ratio of the cross-sectional area of the aluminum wire to that of the copper wire
(PAI=2.63x10*2.m, pCu=1.72x10* 2.m).
Chapter 12 Solutions
EBK NUMERICAL METHODS FOR ENGINEERS
Ch. 12 - Chemical/Bio Engineering
12.1 Perform the same...Ch. 12 - Chemical/Bio Engineering If the input to reactor 3...Ch. 12 - Chemical/Bio Engineering Because the system shown...Ch. 12 - Chemical/Bio Engineering
12.4 Recompute the...Ch. 12 - Chemical/Bio Engineering Solve the same system as...Ch. 12 - Chemical/Bio Engineering
12.6 Figure P12.6 shows...Ch. 12 - Chemical/Bio Engineering
12.7 Employing the same...Ch. 12 - Chemical/Bio Engineering The Lower Colorado River...Ch. 12 - Chemical/Bio Engineering A stage extraction...Ch. 12 - Chemical/Bio Engineering
12.10 An irreversible,...
Ch. 12 - Chemical/Bio Engineering
12.11 A peristaltic pump...Ch. 12 - Chemical/Bio Engineering
12.12 Figure P12.12...Ch. 12 - Civil/Environmental Engineering A civil engineer...Ch. 12 - Civil/Environmental Engineering Perform the same...Ch. 12 - Civil/Environmental Engineering
12.15 Perform the...Ch. 12 - Civil/Environmental Engineering Calculate the...Ch. 12 - Civil/Environmental Engineering In the example for...Ch. 12 - Civil/Environmental Engineering Employing the same...Ch. 12 - Civil/Environmental Engineering Solve for the...Ch. 12 - Prob. 20PCh. 12 - Prob. 21PCh. 12 - Civil/Environmental Engineering
12.22 A truss is...Ch. 12 - Electrical Engineering
12.23 Perform the same...Ch. 12 - Electrical Engineering Perform the same...Ch. 12 - Electrical Engineering
12.25 Solve the circuit in...Ch. 12 - Electrical Engineering
12.26 An electrical...Ch. 12 - Electrical Engineering
12.27 Determine the...Ch. 12 - Electrical Engineering Determine the currents for...Ch. 12 - Electrical Engineering The following system of...Ch. 12 - Electrical Engineering
12.30 The following system...Ch. 12 - Mechanical/Aerospace Engineering Perform the same...Ch. 12 - Mechanical/Aerospace Engineering
12.32 Perform the...Ch. 12 - Mechanical/Aerospace Engineering
12.33 Idealized...Ch. 12 - Mechanical/Aerospace Engineering Three blocks are...Ch. 12 - Mechanical/Aerospace Engineering Perform a...Ch. 12 - Mechanical/Aerospace Engineering Perform the same...Ch. 12 - Mechanical/Aerospace Engineering
12.37 Consider...Ch. 12 - Mechanical/Aerospace Engineering The steady-state...Ch. 12 - Mechanical/Aerospace Engineering
12.40 A rod on a...
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