FirstExam_s03 - ESE 271 First Exam Name: ’ Spring, 2003...

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Unformatted text preview: ESE 271 First Exam Name: ’ Spring, 2003 ID Number: Do not place your answers on this front page. Every problem is worth 25 points. Prob. 1: Prob. 2: Prob. 3: Pnob. 4: Prob. 1: .. r Every resistor is ‘2 (I. Find v0. (Use the ideal op-amp wherein every input voltage and every input current for each op-amp is 0. That is, use the “virtual short and virtual open” principle.)- 4+ 4f. "L _.._ ___,______. 2 2 2 "‘0 (If- 2 ’V' —> ’U"-*QAJ" i'” 24,2 2 -— 2" 1 v 4’ :9”;:-2N; on fir—i 472 4’; 4,- 2 7+T=0 :7 o=-’% . / > 1+ +M+fizo 4—475 T+”5 =° 4:; =~8 Prob. 2: Find the voltage 91 in the foflowin'g circuit. Use a nodal analysis. 2! (V- Zym’: Ban-Law" 45*”: = 21' = 2 => 34’: '5”: =0 r' ’9;- 4r 0" 34"”°”‘ 1:" 3?“- ~2=0 z) 3"’?+4~"’i =2” Sugrflfigr Fmgy Eauanpy Pg." 7m! J'Fcowo EnuATmu: effing-$24 'en (0‘: 1; Prob. 3: Using the mesh currents shown, find :72 by using Cramer’s rule. Write your answer as a 3-by-3 determinant over a 3-by-3 determinant occurring when all three mesh currents are used as unknowns. That is, do not eliminate one of the unknowns to get 2-by-2 determinants. (You do not have to get 1'; as a single number. Write your answer neatly—otherwise points will be deducted.) 4 .n. FRO” DEPrhpfu-r cuflegu‘r .t’ouncE: Li-[rfi’v =3K'Z‘:)=—6l; 2) J25" +z'2:0 2 I Anauun 1.9an tgopl-AVOlDJNS 7'1)! pure-412:0? S’auact: 2.45; 4- it"i'S + 35.1—35 +J_=-’0 '%> a“: +3!" “#4:? r ‘5— t‘lfiow’b TnP LooP.‘ 4!} 4. 3c-3_3€,: I . -. so) 5' o o 3 -.r' - 9‘ -—1 o 5’ _ W075" REflfl-kas’d’flcyrr 9F 77,53“: faunn¢~J locum) ynEdD 07H?“- Callfl-Ec?‘ ANSWERS. Prob. 4: For what value of R will the povfier in R be a. maximum? Also, find the value of that maximum power. ONE S'otu'nouu MARE A Til-EVEMIN '1‘. Moms TfiANJF anhA'fi“. a” an“. ‘£,T: I llrénfix 2 £1 F“? nmz. inén nur- 4?! ' 2 " -"'_G. R' 3 T - 2 . HUI ‘ :. ’1'3" _ NA)? 1 1 4 — 2 A 3 + 3 5'6 ’ 8m: 2‘; 3. - iw: 245 w. y " 3 A!) THEA SO‘UTW‘UI {ET (IN OVEr-z-fiu- TIEVEMHU Gracwr.‘ u (“T “a I A); Vi'fic “1:2 2 ' (DE-‘1 «a -- 4- _.__ 2 3 I " 0 3”} :00 I v1: g: 1 r 4—— .r _F .29! r 3_ 2-H ' 3 [EFMHAv fizz-gain- ...
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This note was uploaded on 06/05/2011 for the course ESE 271 taught by Professor Zemanian during the Summer '08 term at SUNY Stony Brook.

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FirstExam_s03 - ESE 271 First Exam Name: ’ Spring, 2003...

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