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习题练习：.Resistor.
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 作者: admin  发布日期: 2024-08-22 15:34    总分: 50分  得分: _____________

答题人: 游客未登录  开始时间: 24年08月22日 11:12  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.09: In the circuit shown, an electric vs7,pjujs hux456 /q7s z*frt current exists in the metal resistor connected uu4hjvq5jr/,76fptszx s *7s to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of the electric field through the interior of the resistor?


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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.06: When any four resistors are connej l6otw4r94p lcted in parallel, the_________each resistor is the sam jrl49wtolp64e.

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.33: A current through the thin filament wire of a lightbulb causes the f ivudy* 5b9hc0ilament to become white hot, while the larger wires connected t5b yv0ciu*9d ho the lightbulb remain much cooler. This happens because

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.08: Some standard household lights are being replaced with Lvbc nz/2je b+ 9od2sgiywoj 7y* zl;75EDs. LED is the al5 b c7 /v* jony2oj9zgw27izebys;d+ cronym for which one of the following choices?

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5#
 
多选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.16: A cylindrical graphite resistor has length L and wei9mr/ dhmgi;t/-,ie j2 m t:cross-sectional area A. It is to be placed into a circuit, but it first must be cut in half so that the new length is 1/2 L. What is the ratio of the :itt/hijmmw i9me2 /- ;e,drg new resistivity to the old resistivity of the cylindrical resistor?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.20: Wire I and wire II are made of the same mak1.l8rlb6bk(tl h,qq gw)oqu* 1 ml.c terial. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resist b(l),l.u6kg. *b8l1qmcoqqhr w klt1ance

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.31: Wire Y is made of the same material but has twice the diamet *)sj.wsovk8)xja l3f : cwgr(er and half the length of wire X. If wire X has a resistance of R then wire Y would have a resis*aro)w)s (.jfvkxc :gwl3j s8tance of

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.23: A cylindrical resistor haz*8w+gpo c prowk. /cn lcs/,8s length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because oo8l pwgo wcp*8znkc s/+/,.cr f this process?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.27: A junior Thomas Ednzt+ g1 x;7aleison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be z1tla eg7nx ;+modified in order to make the lightbulb produce more light at a given voltage?


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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.07: Three cylindrical resistors are made )t whm+p 1oh2z7+kcwrkqt y/n/ue uenqj-8.5of the same material. The length and radius of each resistor is:u/p kc+2.ek/+)7henqo1mz h wyr-t q wt58unj
Resistor 1: Length L, radius r
Resistor 2: Length L/2,radius r/2
Resistor 3: Length L/4,radius r/2
Which one of the following choices correctly ranks the resistance of these resistors (R1,R2,R3)?

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.22: Four resistors, each of resistance R, ahbf n uo-3w1.sre connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in pn1hf ob3 -u.wsarallel to a third resistor. This set of three resistors is connected in series to a fourth resistor.” What is the equivalent resistance of this arrangement of four resistors?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  95.35: The voltmeter in the ac,bkr/u eyk3 m 2retx*.companying circuit diagram has internal resistance 10.0 kW and the ammeter has./ eurkb23rm e* yk,xt internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most nearly:


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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.37: Consider the compound circuit shown to the right. The haak) 2j ;g)duthree bulbs 1, 2, and 3 - repr;a2gu)ka)h jdesented as resistors in the diagram
- are identical. Which of the following statements are true?
I. Bulb 3 is brighter than bulb 1 or 2.
II. Bulb 3 has more current passing through it than bulb 1 or 2.
III. Bulb 3 has a greater voltage drop across it than bulb 1 or 2.


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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.30: Given the simple electrical circuit a ;sx+h)q xuu 1 :.dwl0 hajtycr,p:h9tt the right. If the current in all three resistors is equal, which of the following statements must huut :1p+,ayl)h;xtwdxh09 scj : rq.be true?


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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.37: The diagram at right represents a simple electric circuit composed ofeh8(h u9ceztx g 66 pqkon8(t9 5 ine6e6(k9xqz8g8( u t cph oth9dentical light bulbs and 2 flashlight cells. Which bulb (or bulbs)
would you expect to be the brightest?


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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.03: Which of the following t) .z yyrad;.5xghya*af;7uy statements is NOT true concerning the simple circuit shown wh7dh*r zy;aa5.g.;yy) futxayere resistors R1, R2 and R3 are have equal resistances?


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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.29: Two lightbulbs X andY are connected in series to a battery. Bul - 3le+3zbc:ugwe i7chb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other tgu7: c- il 3b3+eezhwco the same battery, which one of the following choices best represents what is observed?


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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.34: How many coulombs will pass through thyy)7 slglg-wah n 0:s1e identified resistor in 5 seconds -s g7lyh)aw s:n1gly0once the circuit was closed?


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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.23: If all of the h-z9y+0j,l7 8pgjpqpstur,t resistors in the following simple circuit have the same resistance, which wo tu8ph p s-t9z,q grl+y7,0jjpuld dissipate the greatest power?


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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.34: In the accompanying circuit diagram, the cu05wn lx-y um;lrrent through the 6.0 Ω resistor is 1.0 A. What is the power suplum0 -wy5 xln;ply voltage V?


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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.27: Three resistors R1, R2, and R3 are connected in series to a battery. Sd7 mm n/5rhxe9.ndut1 uppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of powernth /x7un1m 9 .edd5mr. What is the voltage across R3?

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.40: Three different resistors R1, R2 andR3 are connected in parallel to a bnrgppy/86e q8bs;.tc attery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is ;6/egr 8ps8 c.bpqytn the current in R3?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.13: A heating coil 7/bayzs s2 n)0su0v lris rated 1200 watts and 120 volts. What is the maximum value of the current under tz l0ss7s)y0 2rbn /uavhese conditions?

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.23: What is the resistance of a 60yzpqw4 :6) - aejr1hlsid3uf1 watt lightbulb designed to operate at 120 il6):wf-e yhd1u31r aqjzp4 svolts?

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.09: How much current flows thr6 nq*z a0duty:ough a 4 ohm resistor that is dissipating 36 watts of power:a d 6u*tyn0zq?

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.21: A household iron used to press clothes is marked "120 volt, 600 watt.” (4+37+hly p2zfb y/kux bspbd In normal use, the currpp3ybub(bz7 s/f+ lk4y x 2d+hent in it is

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.05: Which of the following resistances could NOT be produced by a circui. qbf (m9g6m hxnv,8bit containing only th bv.f ,gmm6b8h x(n9qiree identical 6Ω resistors?

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  94.37: You are given three 1.0 Ω resistors. Whiyf 8;9 tfzar1ich of the following equivalent r9zrf y;1t 8faiesistances CANNOT be produced using all three resistors?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.06: Three resistors of different /b/my; s t8qvuvalues can be connected together in different configurationqu; v8mt// sybs. If all three resistors are used in a circuit, how many different values of total resistance can be produced?

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.35: When a single resistor is connected to a battery, a total ps:;sd)qnt3fv 8 q; g3uc,dcmg ower P is dissipad:cgv qtd) ;gs3 3m8f,qs;unc ted in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same battery? Assume the internal resistance of the battery is zero.

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  96.16: When two resistors, having resistance R1 and R2, are conneo x2-2g*tpucp s3kv dfg9qqa 1c+7qz 9cted in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the res2kg p7x*qsc-utd p+o32c9q z f9avqg1istances is correct?

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.46: A hotplate is designed such thkkcg128o0p se9vbcp lcc r.01at it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would tapkc 0cpclek rvc80s21 bgo9 .1ke to warm 0.45 kg of water from $15^{\circ}C$ to$85^{\circ}C$?

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.09: How much current flows through a 4 ohm resistih*gw)ikpe)doqlo 1,o : 39dzor that is dissipating 36 watts of power?)h,ooq ilo:913k di)*wped gz

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.24: An electric heater draws 13 amperes of current when connected to 120 v 6g(jfyppu7 /w38+7b7xay tg0 5lz7bs aiwpk jolts. y 8z5/y77 wg(77 iub6a btjlp 3gpsf0ap+kxwj If the price of electricity is $0.10/kWh, what would be the approximate cost of running the heater for 8 hours?

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.05 Approximately how much would it cost to keep a 1d:jouk)k qyq3ef-l 6* 00W lightbulb lit continuously for 1 year at a rate of jl3q :f-6yo edkk* )uq$0.10/(kW.hr) ?

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.09: A constant current of 4.00 A through a lightl2ju -uh9 yz*jbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistaujl9yhz * 2ju-nce of the lightbulb?

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.10: Each member of 0 q4m -h8mbecianrq 96a family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maxieh qqc486m0 r-m9ba inmum number of the computers can be operating at the sametime?

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.16: A 9-volt battery is conney17x nr((sdd- 9bbbru-r( 7pw2jeyo zcted to four resistors to form a simple circuit as shown( sr7yexdbd 2 (rywpur(97-1no-z bbj to the right.
How would the current through the 2 ohm resistor compare to the current through the 4 ohm resistor?


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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.17: A 9-volt battery is connected to four resistors to form a simple circfvt248 :l f/xgro m;kouit as shown to m2;/xot: 4v8flgkforthe right.
What would be the potential at point B with respect to point C in the above circuit?


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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.21: An ideal battery, an idealw91x me0 ,uf, r2gqrac ammeter, a switch and three resistors are connected as shownfw,,x rmgc ur 1a02e9q. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.
With the switch open, what would be the potential difference across the 15 ohm resistor?


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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideaq xei51b0n y9ma5 u6nsl ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperesisynb5 9mu 6e501a qnx.
With the switch open, what must be the voltage supplied by the battery?


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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal ammeter, a switch and thr dksuyu:6;ohac9dfo+e2 7qe i+n q7k*ee resistors are connected as shown. With ddseqk fenkyo 6*a:q 7+ c7uo;h+i29u the switch open as shown in the diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit shown to the right, what is the equivalent resist5f:n2u. ;cup5 . zdyoi-uyzjpance? Assume that all wires -y5:z unju;p 5c ..u2odzi pyfare ideal, the battery has no internal resistance, and all three resistors have identical resistance R.


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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.07: The equivalent resistance of the circuit hmqf ;g+x/du yx.iwr+3i 2rl53f: mcyshown to the right with resistances ld+/+xy2 5 rriuf3ix. :gm;3cqyhf mw $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ and $R_3= 2.00Ω$ is


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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.20: The diagram bepxg; c sh;hkax*px /ko51 +xk1low shows five identical resistors connected in a combination series and parallel circukxhp ;xgoaskc11 5 xh/ kxp*;+it to a voltage source.
Through which resistor(s) would there be the greatest current?


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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.21: The diagram below shows five identical resistors connected in a colua7tula g w 9s2iw)o4+)og:b mbination series and parallel c:oabuswglaw2 l ug+)o97ti)4 ircuit to a voltage source.
Which resistor(s) have the greatest rate of energy dissipation?


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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.29: In the circuit diagram, all of the bulbs are identical.mwnsk 2d42e u. Which bulb will be the brightest2.dumne4ksw 2 ?


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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.21: An ideal battery, an asugul+1 tz/t5ba/ 8nowv . s1ideal ammeter, a switch and three resistors are connected as s z.5sua1t unowgab+l1stv/ 8/hown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.
With the switch open, what would be the potential difference across the 15 ohm resistor?


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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal ammeter, a switch and three resistors aev2)t0xwusk i tf,(8ere connecte0 vuext,)t es 2kw(8fid as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.
With the switch open, what must be the voltage supplied by the battery?


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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal ammeter, a switch and three re ;u ./7dci93f i+joapmgp r+gysistors are connected as shown. With the switch open as shown in the diagram the ammeter reads7p 3 a.+ydu+jf/gc;opigi9mr 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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