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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 ele+2 jtnxx)mc9 vctric current exists in the metal resistor connected 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 o+nj)mx9 2 ctvxf 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 ar2g qe;x4aey0pk .8yoae connected in parallel, the_________each resistor is the gyax.;ae248o q0 pk eysame.

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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 lightbulbs(e4l7qc+orp *4 vnj z causes the filament to become white hot, while the larger wires connected to the lightbulb remain z4 r4ospn(v+*l ec 7jqmuch 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 houtcyhv6k2xj 19jorh8erjo2ap6d 1( - jsehold lights are being replaced with LEDs. LED is the acronym for whicyarj 1hhkvx16t 9cp-oro2 2 6(j8jj deh 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 do7u(6yl8sz u0f0wd py;gx*g L and cross-sectional area A. It is to be placed into a circ6s l *d0 g(7zpx0du;8ywugfo yuit, but it first must be cut in half so that the new length is 1/2 L. What is the ratio of the 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 thpr5q lk( 8hpq.tcc+2 je same material. Wire II has twice the diameter and twice the length of I. 2k+r cth q8lpjp5cq.(If I has resistance R, II has resistance

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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 twicf7hqyqzd42 on7u02 tfjh3 4z qe the diameter and half thf7fjtz7y234o2 h 0hqqn4 uqdze length of wire X. If wire X has a resistance of R then wire Y would have a resistance 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 has length L and radi(cojn(q -8 uf +b(h7oesnnf;h us r. This piece of material is then drawn so tcu( s(ojhno7 - (n8f h+;ebnfqhat it is a cylinder with new length 2L. What happens to the resistance of this material because of 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 Edison wants to make a brightd66d4 v/adh) t,ommhx 9ishc:er light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to oddxt66 mv: /sdm9ahh i,) hc4make 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 of the same material. The lenaeaf4 u6u 1t ccg l(0p;m1ecj7ejh85xgth and radius of each re178cj15( h6uu4xcepfl gj amt;cee0asistor is:
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, are coruydx rz08swit+i d ;-d17o/gnnected to a battery in the following way: “Two resistors are connected in series. This combination of tr1-0+dzw g/7xyudr; s ti d8iowo resistors is connected in parallel 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 accompanying circuit dijg.k8turzhe;zo9 4k ,lw*nndj .li 3-agram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The amm8-gl*,z3hrj.d k uw ki9ntleno.j;4 zeter 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 cd8-zghfky(7jr y 1c* rompound circuit shown to the right. The three bulbs 1, 2, and 3 - representedf7 ch- *grd(kyr1yjz8 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 ely7gnj15)4f+kar cvdi ectrical circuit at the right. If the current in all three resist7gnfir y)1cdv4 +k5 ajors is equal, which of the following statements must 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 simp29 bmugvoi)yao*)qh0vl)35zgo cp j) le electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs) bjmogv5z yu3 ))9 2)g)cio0oh*lpva q
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 statements is NOT true concerning the simple cit;n6lj+;y kaprcuit shown where resistors R1, R2 an ;talp; j6ykn+d 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 zuf n: 6ojxp8.; ge+6 )t/fannf gk2jgX andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the same battery, which one of the follogu8t 2/ ) gnf;+6.foj j: gxn6zpakefnwing 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 pasi1sb e;u sa0sntpu) 3hk jyu/gz57 .j.s through the identified resistor in 5 seugib 7 5san/ejts10 .) uju z3pky.;shconds once 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 resistors in the fopzj;0wd1dk rv 1hl6w4llowing simple circuit have the same resistance, which would dissipate thwj6 d1r lpdk14wzvh0; e 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, thlfl zypb 0s)4/e current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltagelzlyb/fs p )04 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 to3(hgm o azfm9(sgh , (w(4n1kkhqa;qk a battery. Suppose R1 carries a current o g kmahs;z,(k1wg4 a mqknh3(qh((f 9of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. 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 aqztx0ts 5u6+ gndR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = g6 +qus0x tt5z4Ω, and R3 dissipates 6 W. What is 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 is rated 1200 watts and 1o;lss hyy or-;brbv ecz,37,k h:t h(320 volts. What is the maximum value of the current under the:7r,ohyrhe sck lhob,33;;-zsbvt( yse 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 60 watt lightbulb designed to oper3dykq zb*el+w 5*u;tm ate at 120 volts?u3qtew 5lk+mz *;bd*y

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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 flp b*.dvtyc,w 0ows through a 4 ohm resistor that is dissipating 36 watts of powerc v,tb.pd*y0w?

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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, rc((9sdbss7 q 600 watt.” In normal use, ts7(qs9c(bdr she current 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 coubb6x//ss xh*y-. bgw jld NOT be produced by a circuit con/-bx *y/.6b g sbwsxjhtaining only three 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 th9gee i-l sz)6xree 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using alllgiez69s )xe - 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 dx g2 i*hynyp4ym5 5qli*vx4qx4b41gscn 2wj1 ifferent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total v1l* x gsgq5m*y4nqyjwx41xcnb2 4i5ih24p y 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 sq ge1h7r z g3pwj)xj(rwy91zf/n 5d3power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same battery? Asswjn3gjpd11)syr9wg 3/ 75f hz(z erqxume 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 connected in par0k pt/bu djb .ytxfzz8- bl, 7 (*-eazct7kgn;allel, the equivalent resistance of the combination is 5Ω . Whi7/,0-b n tkyb(ezla 7 tfb.j- uzt*xcd8p ;kgzch of the following statements about the resistances 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 that it has a resistancik 3u;mwjw+2*9 z,.x:f -l rv8 nttn,bye nvure of 12Ω when operating at 120 volts. What is the minimum amount of time ue;ur i*l2mjyw bn:-fz8kwr ,+,vn n v.x9t 3tthat it would take 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 curre b(df0r12zyq tnt flows through a 4 ohm resistor that is dissipating 36 watts of powed t(z rf0ybq21r?

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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 hvs*skb238.v)xd :oj33:qcnnfnfd g.7jk cyz eater draws 13 amperes of current when connected to 120 volts. If the pric .2 fd *qy7vj:z cn3kdv.xfsc3 ngo3s8 nkj):be 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 muo/m) ek 8wsmy:dbu:j -ch would it cost to keep a 100W lightbulb lit continuously for 1 yea /-:sdbyk mj)w: 8eomur at a rate of $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 lightbulb results in a a+ut/x uee.)z d96tn ipower of 24.0 W associated with the bulb. Which one of the followi.i deuz utn+6 a)/9extng choices best represents the resistance 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 a family of six owns aiub njua(1 fu). 9md+7qk h9sh 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 maximum number of the computers can be operatin.k9)u9ju7(dh bu s1 +iahfn qmg 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 connected 6p8g f s+7+zzxvqs xib9p4 o2:,lab vgto four resistors to form a simple circuit as showzf+2g+z g8 ,lio: pqv xs9sb 4xba67pvn 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 resistoru gv+- ;8ftzzss to form a simple circuit as shown fvug z zts+-8;to the 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,pj:t3 yk48z n b03r. o,veabyw an ideal ammeter, a switch and three resistors are connected as shown. With the switcpt,0r yoe3: 8wjk3vb4.nya zbh 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 ideal ammeter, a switk 2yub3gr/2 q c1(eijb8 tc-yldz2 cx1ch and three resistors are connected as shown. With the switch open as showcxbric d e22jykb83q21 t 1zgu(lc-y /n 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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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 three resistors68 t8a o 15a3cnmamdy--iog c.ztrzw9 are connected as shown. With the switch open as shown in tri.yo68w 9-z8 t5azca gcn 1-mtomda3 he 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 towkhy:5s (kt/ 5 nfbk 3g4wy2q nfn*ik: the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no interh/f5fnw5yb3(*y tskw2inngkq: k :k4nal 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 -ids,gp i t h:jy9pw*4circuit shown to the right with resistance* j,s idp9igy: p4hw-ts $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 below shows five iurpbmz8l9 h5 si q30/cdentical resistors connected in a combination series and parallel circuit to a voltage q8 05lmsh/zb r ip9u3csource.
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 w27nbfb 0sj9y-zo 8 baresistors connected in a combination series and parallel c b907bb 8a ys2nfwoj-zircuit 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 ave*h ys (,etv-b po+gr,q vwz);67sw kp 9lq.ere identical. Which bulb will be the brightestkg9h.s6b evq 7*e, -pp) ow,wslzv+; vqre (ty?


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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 ideal ammeter, a switc yh4:7up2acfe6 xj) aah and three resistors are connected as shown. With tje)4phx a27 :6faacuy he 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 ammeterfkqu )s m8c s0q5f(7ka, a switch and three resistors are connected as shown. With the switch open akmu) 8 0saqqc k5f7s(fs 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 resipb2pnb+cp, 0 fstors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2 cnbf,p b2+0pp.0 amperes.
When the switch is closed, what would be the current in the circuit?


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