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ENGR210 Lecture28

# ENGR210 Lecture28 - Name CWRU e—maii Quiz No.8 PUT...

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Unformatted text preview: Name : CWRU e—maii: Quiz No.8 10/31/08 PUT ANSWERS IN THE SPACE PROVIDED AND SHOW YOUR WORK IF APPROPRIATE Problem1 (10 points) BE SURE TO INDICATE YOUR UNITS. The switch in the circuit above has been closed for a long time. At t:O the switch is opened. For 1 point each what are the following circuit values at the indicated times. vow) p m) AL va(0+) __:'K0_L i,,(0+) _:__A‘__ v0 (00) ———-—-——-—O in (0°) 0 The circuit time constant for tzo 1- 2'1— km For three points write an expression for i0 (t 2 0) \$6 — at 't < o \ _ [2_ I2— =. _ .- irate ) 3 - 4 A . t>O \ E : ’ eriw ~4A + Lotta: _ AI- ..SQ I P. :0 lTam”? + M? \$=%:\$‘ i it; of ;; EX). = __ at ‘ ‘7’ Name : CWRU e-mail: Problem 2 (10 points) BE SURE TO LIST YOUR UNITS. 1k!) 3k!) For 1 point each what are the following circuit values at the indicated times. The switch opens at t=0. i0(0‘) O v0(o—) 9V i0(0+) "LQ'MA- v0(0+) C'V we) __°____ vg(°°) O The circuit time constant for tzo ’L' Name : SOLUT‘ OMS CWRU e-mail: Quiz No.8 10/31/08 PUT ANSWERS IN THE SPACE PROVIDED AND SHOW YOUR WORK IF APPROPRIATE Problem 1 (10 points) BE SURE TO INDICATE YOUR UNITS. The switch in the circuit above has been closed for a long time. At t=O the switch is opened. For 1 point each what are the following circuit values at the indicated times. Vo(0_) O McLLIookinlaLacsImd’ 5(07) ﬂ ME: my) 46 Doll-s - my) 4 mgs O . . . vow _.__ ~ we) _W_P\$«__ I The circuit time constant for tzo ‘L' '5'— WM . _ _ it For three points write an expression for to (t 2 0) Lott) ’ "I‘Q For tzo’ ‘ +}= ‘t 3 ‘ _ la: ‘ q l (o ,2 _ L100) ) ’ ‘é’ (I A ° Fat”) W <+'io%+ 1J5=O b: inspect-13W to o ‘- K wwo‘l‘w‘ili‘“ M~Duilwtto<oilrtié %:%=Ji_ 2M 529.1]- -2:- C W) <3. Vt J/L/K Name : SOL—U T‘ 0905 CWRU e—mail: Problem 2 (10 points) BE SURE TO LIST YOUR UNITS. 792% {:40 [/99 IL "HAM ‘u a. voting; Maia.“ 4Q=QELQ ._ Gust}? 3KHK+4K ”10”)" VOLO“) = “0“” 100,uf n‘ortzo -—" 5 + ' 4K§ my: .\. 31:9 out tiu‘A Point: Loio‘t-I)= a?“ [email protected])(loom5(’)= oHsewnéiA For 1 point each what are the following circuit values at the indicated times. The switch opens at t=0. i0(0') _...~:0 swim—WMW @0th v0(0‘) M 140+) ”LE—MW vow) M - K ‘ 0 10(00) -0 Smu, Tkwutﬂrmti be Vo(°°) (£5ka The Circwt time constant for tzo 1' 0 i "" {ELDVIA 5 -25-t‘ For three pomts write an expreSSion for z (t >0) \ l' 55 m P? L ——’—_’——.F i g - —- 4.6x PM” ”33+ "To 0 w m: quote “‘2 cc; "2 be. RC if or“ = 05:23 WM): 0 \$23 +- A—r—c 0 -2 St At “1%:Qooxi5 )(o(- 12 5)€ t t \$939: at: —2 6i: 0% 0R9 cb=j€><io e -25 MMaLcivﬁm’UﬁO): ‘E; o (t)— ~i e m bit ”303‘ 1 __—i;_ 28347 L&+‘§o+p\v&_*mm M». W WM 1:\-\,': a ' (OmH we ~Wm 4w tom 09M 6» «9M Cat). Fuk<d _ )OmH V \m s’remdﬁ, 73kb,. TM in . ox ska-0b , so \ooké Max. 5’ msﬁbm in QMNQX .4. 7,. .L + 4.- 4-1- R93 ‘f ”20 5 LNDLA) \ookdOJLmt "for ’C 20 In s+e vsm of JC=°° lOmH 7:63;; “he. a. Shatt— J; L Lee): Locoo>+Eio<<>>~lo<w>je “i, J Lo(‘€)= 5 +‘r[.\<a~—L-—'5] e ‘000’5 ”(>0 , 7 7* Ewﬁw *7 Lott} ’ 37"°1€ ...
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ENGR210 Lecture28 - Name CWRU e—maii Quiz No.8 PUT...

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