Solution Quiz 8 - ECE3025, Summer 2011, Quiz 8 July 22,...

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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 d@piflk - 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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This note was uploaded on 02/08/2012 for the course ECE 3025 taught by Professor Citrin during the Summer '08 term at Georgia Institute of Technology.

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Solution Quiz 8 - ECE3025, Summer 2011, Quiz 8 July 22,...

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