EBK MATLAB: AN INTRODUCTION WITH APPLIC
6th Edition
ISBN: 8220103113663
Author: GILAT
Publisher: YUZU
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Chapter 4, Problem 9P
The value of a saving account, V, after t years is given by:
where P is the initial investment, r is the yearly interest rate in % (e.g., 7.5% entered as 7.5). and n is the number of times per year that the interest is compounded. Write a MATLAB program in a script file that calculates V. When the program is executed, it asks the user to enter the amount of the initial investment, the number of years. the interest rate, and the number of times per year that the interest is compounded. The output is displayed in the following format: The value of a $XX investment a yearly interest rate of X.X% compounded X times per year, after XX years is $XXXX.XX”, where XXX stands for the corresponding quantities. Use the program to determine the value of a $20,000 investment after 18 years lithe yearly interest rate is 3.5% compounded 6 times a year.
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Students have asked these similar questions
A plane wave propagating through a medium with &,,-8 μr = 2 has:
E = 0.5 e-j0.33z
sin (108 t - ẞz) ax V/m.
Determine (a) ẞ (b) The loss tangent (c) Wave impedance (d) Wave velocity (e) H field
2)
The phase voltage at the terminals of a balanced three-phase Y-connected load is 2400 V. The load
has an impedance of 16+j12 2/6 and is fed from a line having an impedance of 0.10+j0.80 2/6. The Y-
connected source at the sending end of the line has a positive phase sequence and an internal impedance of
0.02+j0.16 2/6. Use the a-phase voltage at the load as the reference.
a) Construct the a-phase equivalent circuit of the system
b) Calculate the line currents IaA, IbB, and Icc
c) Calculate the phase voltages at the terminals of the source, Van, Vbn, Vcn-
d) Calculate the line voltages at the source, Vab, Vbc and Vca.
e) Calculate the internal phase-to-neutral voltages at the source, Va'n, Vb'n, Ve'n,
1)
•
A balanced three-phase circuit has the following characteristics:
Y-Y connected
The line voltage at the source is Vab = 120√3(0°V
•
The phase sequence is positive
The line impedance is 2+ j3 2/0
The load impedance is 28 + j37 02/0
a) [4 pts] Draw the single phase equivalent circuit for the a-phase.
b) [2 pts] Calculate the line current IaA in the a-phase.
c) [4 pts] Calculate the line voltage VAB at the load in the a-phase.
Chapter 4 Solutions
EBK MATLAB: AN INTRODUCTION WITH APPLIC
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