EBK MATLAB: AN INTRODUCTION WITH APPLIC
6th Edition
ISBN: 8220103113663
Author: GILAT
Publisher: YUZU
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Chapter 4, Problem 23P
A truss is a Structure made of members joined at their ends. For the truss shown in the figure, the forces in the seven members are determined by solving the following system of seven equations.
F1cos28.5°+ F2-3000=0,
F1sin 28.5°+6521=0,
- F1cos 28.5°-F3cos 58.4°+ F5cos 58.4°+ F6cos 28.5°+3000 =0,
-F1sin 28.5°- F3sin 58.4°- F6sin 58.4 °- F6sin 28.5°=0
-F4- F5cos 58.4°+ F7=0, F6sin 28.5°+7479=0- F7- F6cos 28.5°=0 Write the equations in matrix form and use MATLAB to determine the forces in the members. A positive force means tensile force and a negative force means compressive force. Display the results in a table where the first column displays the member number and the second column displays the corresponding force.
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The parameters of a certain linear transformer are R1 = 200 Q, R2 = 100 Q, L, = 9 H,
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rad/sec.
a) Construct a frequency-domain equivalent circuit of the system.
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c) Calculate the self-impedance of the secondary circuit.
d) Calculate the impedance reflected into the primary winding.
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impedance.
Which of the following is the absolute
permeability of the cast-steel core of
figure Q4?
A = 2 x 10-³ m²
N =200 turns
-Cast-steel core
1 = 0.16 m
(mean length)
Figure Q4
O a. 1.18 x 10 3 Wb/A.m
O b. 1.2 x 10 -3 Wb/A.m
O c. 1.5 x 10 -3 Wb/A.m
O d. 5 x 104 w Leave a message
Find out the equivalent inductance for the combination when
2
inductances L1 and L2 are connected in parallel such that their
fluxes oppose each other
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value of load at which efficiency will be maximum
3
Chapter 4 Solutions
EBK MATLAB: AN INTRODUCTION WITH APPLIC
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