Instructions : Select the best possible answer for each of the following (32) multiple-choice questions.

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1 o v r~~~f s, F,6 7- Page 1 ELTECH 113 Lecture (Quiz #4, Take-Home) Due Date : Monday, (5 :30 pm) Instructor : Bret Allen Instructions : Select the best possible answer for each of the following (32) multiple-choice questions. 1. Two components are in series if they have : ->Q one current path b. two current paths c. the same voltage d. different voltages 2. When two components are in parallel, the circuit has :. one current path two current paths c. the same power loss d. different power losses 3. As a general rule, how are electronic components connected when placed into circuit? a. in series b. in parallel as a combination of series and parallel d. as neither series, parallel, nor series-parallel 4. What determines whether connected resistors are in series, parallel, or series-parallel? -~1 an current flow b. power source c. resistance d. voltage source 5. Where can the voltage divider formula be used in a series-parallel circuit? with b. with a group of series-connected resistors a group of parallel-connected resistors c. with a group of series-parallel connected resistors d. with series-opposing power supplies 6. Which of the following is the more useful in solving series-parallel circuit problems? a. Ohms' law b. Gilbert's law Kirchoff's current and voltage laws d. Lenz's law ELTECH 113 Lecture (Quiz #4, 32 Multiple-Choice Questions)

2 Page 2 7. What is the total resistance, if a series-parallel circuit using 30 ohm resistors has Rl in series with a parallel combination of R2 and R3? a. 10 ohms b. 20 ohms 4~ = C3o)C3~~-~. 3c~ d. 4 5 ohms R Z " 90 ohms T --IQ "4ca ~..~. 8. When R1 = 7 k ohms, R2 = 20 k ohms, R3 = 36 k ohms, and R4 = 45 k ohms, what is the total circuit resistance if Rl is in series with a parallel combination of R2, R3, and R4? a. 4 k ohms.,.~.._._...._.~. T _')ou 17 k ohms R + c. d. 41 k ohms 108 k ohms IQZ "3 3~ W 5 9. What voltage will Rl develop with 8 V applied, when R1 = 20 ohms and is in series with a parallel combination of R2 (36 ohms) and R3 (45 ohms)? a. 2 volts )_ --~ 4 volts -+-R I (34 +'..20 = /,/ v_!1 c. 6 volts = rya t~3 3~ty5 d. 8 volts S T 3 Ri = V3 /2r = 8VlLIDJl 10. A circuit consists of R1 in The R2 voltage must equal : a. VRl series with parallel resistors, R2 and R3. V, ~=(QA)CP ~.~-~=yv KVL.' V =R33 RZ 11. What is the voltage of R1 when, the circuit with 24 volts applied, has series resistors Rl (1 k ohms) and R2 (2 k ohms) in parallel with R3 (3 k ohms)? --*(n 8 volts a~j... / oo D..tt b. 12 volts vr i c. 16 volts d. 24 volts the circuit will : f a. increase... (X decrease V 5 ~ ( *91 ( < `) 14 /~I T d. remain the same double VR I = & VO L-r :5 12. When a load is connected to a voltage divider, the total resistance of ELTECH 113 Lecture (Quiz #4, 'LOA0 32 Multiple-Choice Questions) WM r- 'J j<la A'O 5 t:' D A/A1e 1:7 - IE 0,

3 Page The current that flows through the : bleeder current. load current c. resistor current d. voltage current an unloaded voltage divider is called 14. Which of the following is NOT a step in solving for total resistance in a series-parallel circuit? a. determine the equivalent resistances of all series connected resistors b. determine the equivalent resistances of all parallel connected combinations determine the equivalent resistances of all series-parallel connected combinations d. determine the equivalent resistance of all the remaining series connected resistances.,.., j- R I! S E, X lao ~~ 15. When a circuit consists of series resistor Rl with a parallel combination of R2, R3, and R4. P1, the power loss of Rl is equal to : a. PT b. PR2 + PR3 + PR4 c. PT + (PR2 + PR3 PR4) -4d) PT - (PR2 + PR3 PR4) ~3 + 1N 16. When a load is connected to the output of a voltage divider, the output voltage will : increase decrease remain the same double h~lhl,c;' ~ ~tr 17. An R-2R ladder circuit is used for : a. analog-to-analog conversion b. analog-to-digital conversion -- c. digital-to-analog conversion d. digital-to-digital conversion Aj-TEX LvA0 29 Co hfnc :T&0 18. The total resistance of an R-2R ladder circuit (DR _ kb. 2R S TL.< "7p FDA c. R + 2R d. R x 2R OffL ^ U72 U''or _- ' - ~ ~) 7 -e'e equals : ELTECH 113 Lecture (Quiz #4, 32 Multiple-Choice Questions)

4 Page With Rl in series with the parallel combination of R2 and R3, if R2 opens, the total current will : a. increase R T - = (R( a )()~ 3) + ' 1 -"--))n decrease c. remain the same d. cannot tell T(aPA/)=,E3+ r Rr T 20. In a circuit that consists of Rl in series with a parallel combination of R2 and R3, if Rl becomes shorted, total resistance will : a. increase -.,.,.,~.. Sr. 4 decrease _ remain the same ~, e 3 - _~' KTTfj L d. cannot tell ' A* 21. In a series-parallel circuit consisting of connected in parallel with R3, if R1 opens, ram. increase O~ decrease,e c. I remain the same d. cannot tell,e a 22. In a circuit where R1 and R2 are in series, R3, if R2 is shorted, then what will happen a. increase b. decrease remain the same d. cannot tell c? Rl and R2 in series and then R2's voltage will : e3 ::r. ~2a -L- 1 >~c~ EA 5 E but parallel connected with to the voltage across R3? a3 1~ K V t_ ; V.s 23. What is the voltage across R2 and R3? a. 6.9 volts b. 7.0 volts 7.1 volts 7.2 volts r3f F'a.e F ~_ AFTEA, a :r5 5'NojerEo 2.3kOhm 2{ 5.6kOhm R3C 8.9kOhm i a v v `~ 15`~ (S,~ t 8.9) V_V -74 IJV- V4 3-= L-1. 2/06 IV ELTECH 113 Lecture (Quiz #4, 32 Multiple-Choice Questions)

5 Page What is the volt age across Rl? a volts volts volts d volts R1 S - 5.7kOhm R21 5.6kOhm R3{ 3.4kOhm 7~ _~ E5, (7 (S.G+ 3.H ) 25. Wh a d. 1 t is the total power for the circuit? Z Ell 3~ O v v L W 4.46 W 4.47 W 4.48 W R1 7500hm IoTq L (/ a o v~ 0V 750 1<.1L 2C 10kOhm R3{ 3.3kOhm 7 Clot 3.3) a IAJ ^ y, _,j 26. What is the total power for the circuit? a W b W SEE AT T"ACtq/Lt~nl 11.2 W I Fo'< SvL L)7"-3- an/ Wattmeter}CWM2 Power Factor: \61tage Current ELTECH 113 Lecture (Quiz #4, 32 Multiple-Choice Questions)

6 ~vl U7 ~ot.1 S~ C~a'U 2 L4 75 o-~l /D ` -:L-. oa a l.xht T-' 13 - ~3 a h = ~~ a a s S~ I/ 50o--a Z - ~, 533w >? C;? w - -~.5167w (l,oaa)(7sj) P7 /, o as ~ t 1, 533 w "~ ~~ S1L'7 Lj

7 Page What is the current through R2? 17.6 ma 17.7 ma ~r c ma d ma R1 1.5kOhm 2.3kOhm R3 ~5CC /-~ TTflCH/1'l~'nIT F7~~2 SQ L, u 7-.Z'p ~ 1-135V R2 7kOhm V2 145V 28. What is the current through R2? a ma _- LX 5 b ma S 1.55 ma OeT d ma 2< 3.3kOhm R3< 2.8kOhm r = 3, 36,'750'Ftir,4 29. What is the current through R3? a. 1.5 ma b. 1.6 ma c. 1.7 ma 1.8 ma 28V 2< 3.3kOhm R3< 2.8kOhm 3 T -7 c5,,,7 S ELTECH 113 Lecture (Quiz #4, 32 Multiple-Choice Questions) z, 2, ~

8 ~ L. vt~-_ v~~ 5 /q c -T's~.~ r9 4~T1C,. T /<-n- -~- CZ, 5 /< ~ = 2-//. '7 -FO 3 '7,,4 d. 3 33,lr,q '7 /< --jl (z-/ /. 7$03-7,4) 4 <Tr,\iG /glc3nc '7 K sl I/a sz.. T'. 1-'45 v s5a 1 Va _ l ys 1/ s 5 -f ly 12 ~ (l. o / L/ 7 -~ '2" q (-7~ 7 'k ~- '7 (c2, 3 /< ) 14~ 1, a (z, s) (7) _ Crs l. s 4- '7 -n- (q/. o / y -~ F MR) '7 K.jL

9 Page What is the current through R1? 3. 4 ma Z V; o7 d. 3.7 ma 4T F(-3. 3) (c?,i) 7 ks, R1 V3, 3 t- c kOhm 28V _ a~ = 3, ryt 2 3.3kOhm R3 2.8kOhm P-4 ) 31. What is the total resistance? a. 5.6 k k k52 d. 5.9 kq CS.(. ) ( IF.9 ) 7t<-n-3 LCs. ~+- ~.9) J 2< 5.6k0hm R3< 8.8kOhm ~T - -,r737 l<~ IIE 'T S " 7 l< -R What is the Total Resistance? a b. 2752,~ 28Q T 41 - ' a i 3 '~'. Ie' (-3 C~ ) ( s0 ) ~-- 2 < 300hm R3< 500hm ELTECH 113 Lecture (Quiz #4, 32 Multiple-Choice Questions) -END OF QUIZ-

Series-Parallel Circuits. Objectives

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