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Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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
Transcribed Image Text:ENG3043 Tutorial I
A DC voltage source (Vs=10 V) is connected to a load (Z= 100 2) via a lossless transmission line
(TML) as shown below. The voltage source has an internal impedance Zg–50 £2 and the TML has a
characteristic impedance Z- 75 2.
i. Calculate the phase velocity of the TML if its effective permittivity c is 2.56;
ii. Calculate the source and load refection coefficients;
iii. At t-0, the switch is closed. Draw the voltage waveform V(z.1) on the TML at t=2.5T where T
is the time taken traveling from one end of the TML to the other and z refers to any position on
the TML
iv. Draw the voltage waveform at z=3/4 from the source for the time period between 0 and 37;
v. If the switch was open at =1.57, draw the voltage waveform at z=l/2 from the source for the
time period between 0 and 37
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- I turned the voltage value of the AC source into Vrms and got magnitude 16.97 & angle 10.Then calculated the impedance of Load A to be [ -9.28 - j23.4 ]. From that, I calculated the complex power of load B to be [ -2.42 + j6.33 ] my power factor calculation I am using inverse tan ( Q/P) , where Q i got -1.91 & P to be 5.559, which I got from my total complex power. If that helps. But I am calculating a negative power factor, so i am curious where I went wrong, Thank you!arrow_forwardThe impedance of a transmission line with a length of 50 km is given as z = 0.08 + j0.48 22/km. At the end of the line, a power of 250 MW is drawn with a lagging power factor of cosy = 0.95 under 220 kV voltage. Under these conditions, find the voltage, current, and power factor at the beginning of the line.arrow_forwardSolve A-Earrow_forward
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