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Solution Quiz 8

# Solution Quiz 8 - ECE3025 Summer 2011 Quiz 8 1(2 points...

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Unformatted text preview: ECE3025, Summer 2011, Quiz 8 July 22, 2010 1. (2 points) What is the primary reason mission line characteristic impedance? (2 13/111?) all fC.lc/c£frbn5 you wish to impedance match the load resistance to the trans- 2. (2 points) Explain why a parallel fallout of a transmission line with characteristic impedance Z; to N transmission lines of characteristic impedance 20 will give rise to a reﬂection. W .. c' 7765 eﬁnr‘ve/mf' )‘M/cw/the 563221;? _ ( _ W 7 Z , To. 547‘)“ & para/{my acqglﬂpm sf {/2 ref/56X, m (5 “5 77— 97; ﬂy/(SCQ/ﬂtfnuhly 3. (2 points) Select the correct response: A transmissioa line does no A) dissipate power, B) transmit power, or C) store energy. E 3“”; £2“! 5M I 553:». L116 .3 term 5/17; 7c 79”” '25; {if (We ﬂ/m‘mjf-jzefw [#5 (drive) Mi; WW" w {ff/(’Fy {0.9/31 . . ‘ I _ I {:2} #935 5 ,ﬁarc gng/y/K Iflﬁ (1’ C'éﬁry-{éi} (1/46; far, i 4. (2 points) Explain one advantage and disadvantage of a) b) series impedance matching at the source. — i I -,-l-V. 'bﬁ‘r. 10cm“ 6?) +fcbmhhfas “if/(C3994; .— ngg [ﬁg 9f fewer {need/3m" e 5 ﬂ ‘ , _ / ail/awe me ref/(67%” :7 57"” Imp“ é’f i L) +3 gin/(5 ﬂit/WC " I “Ff/77‘ (@stch “#474 [email protected]ﬂk - NHL 57959:. ages and currents instead of electric ﬁelds and magnetic ﬁelds parallel impedance matching at the load, and 5. (2 points) Explain why we can use volt when we analyze transmission lines. ,. , _ \ f—p /’15 5: 01‘? 564/44 gang/J, 79¢ 5 wee/ 646’s: ff ‘ hark Virgin ami/ 7Z9 Mffrlcfch 1,01%}? e/ed‘romc C [/th'fK/f At t = o. the 697% +172 #9507??? (.94 Hats WM; 6. (15 points) In the system shown below, the switch is kept in position A for a long time. switch is moved to posit-ion B. ,109'” ((3/- ., 5 resulting from the switch changing position, (t) for 0 < t < 4T. Develop a reﬂection diagram for the charging proces up to t 2 4T. In addition, plot the 10 W WW : ommﬂ/ :,57/7§+/00ﬂ/ ad voltage VL(t) and the input current Ii“ ...
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Solution Quiz 8 - ECE3025 Summer 2011 Quiz 8 1(2 points...

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