EEL 3111C - FINAL A

EEL 3111C - FINAL A - Final Exam EEL 3111C Fall lflfl’?...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
Background image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Final Exam EEL 3111C Fall lflfl’? Dr's. Srivastava :3: Jordan fiflhidfififlffl ___________________________________________ _, . Last Name ' First Name ' Section # (I)I Answer each of the following questions in the space provided. 3 (a) How does a capacitor behave in a DC stead}r state and why? @‘a.fih_ ‘: C 0w" :_ .61 i: 3 {h} An appliance is rated for 120V, '15 A, 61] Hz. Can you determine Lhe energyr used in'kWI—I in 24 hours? ' bale); HE'ng I P :— Olm (new 151C - {e} Consider a 113"]th capacitor with 1.roitage vit) = lflcosfilfll] flat + 313”) V. Find the instantaneous current i{t} att '= [1.3 ms. I:.,-.1 iii"): tow-5.136919 3.; tabgfi)gfih (Incantsraw) PI "'75: T .. _... _,.. '— iDQ Tiiyéfihsi‘i‘c'lo -fi" ffi [(013 M5,.)__ W 51pm £ ‘3’ G : m'g'.- Pi 3 [d] Consider the eincuits shown below. Which ones are not 1valid and why? ' {fl} lewqu?ch clean nat‘ F54— cb) Vaifai . 613.j- “5“ 39mm; (2] 111 the circuit ShDWI‘l, [at 19 = 3 A. ID (a) Using onlythcthmelaws[Uhm's Luw1KCL1KVLJ, find 15. You arc not allnwed [a write and solve a set {if simultancnus c nations. V :15: —-—— Is "'1. .-" 32%; L61; IA'hGEE/fW ydmh—Sfl-M ta.) (3) Ccnsidcr the circuit shown bcicw with a variable lcad resistcr e; ' q“ d +2q+cu1¥+5oiy20 13:31:“:E'ILLI I 11.0461 R 1I. ._. -- II GI UThF URL," 33:2 [+4 I,“ H] [b] Find the maximum power transferred to thc matching Icad. (4} Consider the following circuit: 3“? The MCI—hf capacitor was initially charged to 2.0 ‘t’ and immediate] 3* connected to the source at t = t} via the switch. in t= 2 5: the switch position was changed to fully discharge the capacitor through the resistor R3. The resulting voltage waveform is shown below: E? 6 £1 .1 G t. .1 3-. 4 5 as: t {:9} 4 {a} Determine the time constant n in the intervai t} a: t a: 2 s. site“; :: 3+ (1—96) TE- Kf' Y t G .1" fin” 6’ a ‘ “fl = fif’t‘l‘j L7 '— 0.51] U H3“) :_ (fig— E’ E- ) w 4 {h} Piot the capacitor current [[t] in the interval {J <1 t a: 2 a. a}: t if “15' H ,6 g ’— /Tt Iii. 1! L: totem-Lit:- v: £1 imam“ fl 1161' " x“th [ 1: Us J [M fl 4 {L2} Detarmine the' time constant 1:; [in fine inlawal I 3» 2 5}. ' w 3—6) = cg- G a. Hr: 31.55%! "J ’5 19):..1-33'33 e: with . I ___._ f . "A: $3 533 e. TL " I' - -: "5 . H Ti .. LEM _ 4 {d} Fimi [he exprassiun for Em far I} 2 s and plot it in the figure below. '4 {e} Find the energy transtfirad to me capaciior En E11: interval 1] i l c: 3 5. .— 1. w[1)r: a"; fliwawigé (2') : glow/M1? um): 3.33531"?- :: 513321 “J Na); Jivtld‘cflo (5 33") r: 2?‘ (5) Consider the following ideal op amp circuit in an AC steady state: U1 H] [13} Find vufl}. ,5. un- UPfiuhTa-CI L Ki?" lukfl. n JEQ'FJLF: GET.) 0 $93 H E+J£I '13 it?” 501:: n... _ F51“ \I' 3;: #JS ‘2’ a ‘34 5+ Jag)“ \IGIH : '5 CwC “J *7 "V f;- 5 {chilldlfl{t}- :9" _ {Fr—vu. 1: JG ‘3, :05. LGIW‘Q "1 # it‘ll-"LL u H4: 49w) "Mp {Haw-0’5 Cfich‘“ (6) The feiiewing eireuit has been analyzed and some of the current phasem have been determined as fellows: .II S J1 ‘J 3,951" L; = ((18 —jfl.fi]l A. II = {—0.2 43.13} A, Ig={2.4+j 1.2m. Find the feliewing quantities: 5 {a} The eemplex power abenrhed by the voltage eeu1ee. m r“- r-— .- g = .—(I}+ T1,) 7-(33'1 “‘J (Lg) PT A: a "‘ * :j'i 13m 49 Is A .— __ Gil U Ezicflei GHQ) i3) “5’ PC 4%JU D '1 We! 5- {b} The reactive power supplied by [he current sourcc‘ m (L 9&— FK... U r? 5 *2: r‘“ ' 219.2 é 5:16 :1} hJ-fg) Cliofim .e 3- ...
View Full Document

This note was uploaded on 08/28/2010 for the course EEL 3111C taught by Professor Srivastava during the Spring '08 term at University of Florida.

Page1 / 7

EEL 3111C - FINAL A - Final Exam EEL 3111C Fall lflfl’?...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online