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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 current exists in the metal q*pqy *uo ws(jn9+q 0wresistor connected to the ba*0qojyn (q+s pw9uw *qttery. 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 connsz :hlqqc+j2+-sp0 u r;2 ixonected in parallel, the_________each resistor is the szh ssqc+xopj 2:nrqli+u2; 0-ame.

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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 fi jf1g tf;hnh::lament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much coolejh g:fft;h1n:r. 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 househo +zo9+9a1jwjdgru0 kb1 f*bgk4ogcy4ld lights are being replaced with LEDs. LED is the acronym for which one of the following choicebzj*cgr4kg fu od1 o9k9a4g b y++w10js?

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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 h*w -pka;:ak,hg +wv xlength L and 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 new resistivity thpwa,khg+: xav ;w- k*o 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 uaz 5j:5ur qz*6 ,gzokmzz5a0material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has 6uz5 zg*raz jz z5oq0ak u,m:5resistance

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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 twd7 rze(n8 qk cqjbs50vyk0-z5ice the diameter and half the length of wire X. If wir5d 5qj7vn(bk8e0-zczk0 ysqre 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 resist3iy 7cl5bjd:eor has length L and radius r. This piece of material is then drawn so thce:djiy bl73 5at 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 Thomasb -jr05 xq2 em,3z *o2qvigcce Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given volt*oe-0j2 zc2ci,gxqr 3be5qm v age?


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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 re4:mme2dsfkq .n)f3j5kmpiv5x w;bf2 sistors are made of the same material. The length and radius ofk e3dkwf.ff25)m xv24j:is p5q;nm mb each resistor 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, 6c7q wjc;:o:ua cwd5hzp d1xiy)q7;a are connected to a battery in the following way: “Twiq p)yz;aw;ccuwxdq:o71 h67j 5d a:co resistors are connected in series. This combination of two 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 accompa* q. :/gmlqm46bcedyhk s/ss.nying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA.// clgh: 6dqsbms4q .e*. skym 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 compou4txlnhuo 79 2vnd circuit shown to the right. The three bulbs 1, 2, and 3 - represented tu4927vo xnhl 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 at qes*br c. coms,x9*8k( whhq* the right. If the current in all three resistors is equal, which of the following statements must be truehq* 9emwo.kqsc rh*x b,sc*8( ?


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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 comp:bu5i1xkf j6 josed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bujij: x5f1uk6blbs)
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 p*ho,1 fhbx1)j ;hufxthe simple circuit shown where resistors R1, R2 an1u* fxpfhbxjo,h);1hd 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 lightbulb)k(digh u)pbgn:;9j-wgu xj6s X andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are idgnw;:pudi jbg ()jh)x 9gu6k-eal. If bulbs X andY are connected in parallel with each other to 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 the ide5gq tt2f n,bj)ntified resistor in 5 5bj2n,ft)qg t seconds 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 resistoet6u)2y**m ipsnx*so rs in the following simple circuit have the same resistance, which would dissipate the greatest pow p2ys ot*6m)nsxiu**eer?


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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.k 2, 6 hzccexniigd3+ cp+4jr circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is thcri+z6phi 32 ,d4n jecg +xc.ke power supply 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 resistorsajemwc;z5 1:6 rotms, R1, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R 165;mstroe z ac:w,mj3 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 andR3 are connect) g(vv/kcf2umxb yjc* :/ m;voed in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. vf(vov :mc*;2 xuy/b)gcj /kmWhat 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 ratedq w i7 quu0lekg1q *084qykuu:t22zne 1200 watts and 120 volts. What is the maximum value of the current under these conditions4y*0q wqukuz0:i 1t28lek7 q2 quneug?

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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 lightbulego*2 3 glz*lub designed to operate at 120 vo*2 *gzl 3geuollts?

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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 curr fau c,fuqhjuk+ 7.e36ent flows through a 4 ohm resistor that is dissipating 36 wat+ u7ch3,.ue f6ak jqufts of power?

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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, syjnl cr8np( f*k* p(8600 watt.” In normal use, the current ipc8(lnfk*n 8 py(rs*jn 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 cih.v,;7bo x qhikz8snd;( rybi c 588could NOT be produced by a circuit containing only three kni;i88;bx5 ydcvh. s7qc(,z8rbiohidentical 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. zc3 (6vdef)y zWhich of the following equivalent resistances v)63y zedzc(f 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 values can be connected together in znuyf)qkav.j 7(;q7a different configuratio(vjuq )a7 q.y7nfk a;zns. 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 pr+d:zfv5 4(j w/ gkjd b.m88e w5tkrn)9bajccower P is dissipbcjrd(5jzm+ vkn).wde8b fcg w5 r/k9: 4taj8ated 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, mjcwfdb-y -e9,7 (5vkabpvh resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about a-yh( -c9b pd7kew mvb,,v fj5the 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 n4 ntl1ieyh (m-4i3m fsuch that it has a resistance of 12Ω when operating at 120 volts. What is t nli m n3fy(4-mht4e1ihe minimum amount of time that 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 current flows through au/,xc8dufm 0h lj im8dkz*79gz(zx,i 4 ohm resistor that is dissipating 36 wattd7x 9uzzkmiclj uh8mi(g ,/d08x,z*fs of power?

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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 connqtivkz))1i ffp5jhv 6**c b .nected to 120 volts. If the p *v)cvifhj p1qz5n 6.k t)bf*irice 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 coser 3qe-z5pun +t to keep a 100W lightbulb lit continuously for 1 yea+-e5quer 3znp r 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 tlwpb h,x82k*b i1xx pr.eu;h.;gq;cchrough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the rei1,8 p rh ubkb qxc x..ech;plx*w2;;gsistance 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 a computer rated at 500 watts in as5 e(fdb -66yufy5 ntk 120 V circuit. If all computu5 k66y sfb-df(n5etyers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum 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 connected to fou-u- ic veht24;kb9rgq nvc,h/r resistors to form a simple circuit as shown to the rig n,qicv-bgh9t;v 42c/uh -e rkht.
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 too+pj-i ehsv2 +qx;1 xd four resistors to form a simple circuit as shown to the right; p-j1hs dxe+ x+ioq2v.
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 ideaqbo.3m.lu u,d )j ;wzh( l:yr*3olhohl ammeter, a switch and three resistors are connected as shown. With the switch open abhrhu. 3.j d(:)lhol3o ;wzuqo*yml,s 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 idealh 6vkgqf;g6 +ld/fm m8 ammeter, a switch and three resistors are connected as shown. With the switch open as shdfqgm +6f6h/g8m k; lvown 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 ammetzb z* (zsas1a8er, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amper (z a*sz1bsa8zes.
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 u/5 .4 elcxsxta cn33ym7jn b3right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistorn c /eb3s5tal.y33 xc7nx4 mjus 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 resv0.dsw-hh 8, ) ta;kmwthgx :mistance of the circuit shown to the right with resixm8:k ahhg; ,ws.m) dvt0 wht-stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 xt jrgb 5lyi8dz1nn 4n:j*7j- identical resistors connected in a combination series and parall5b1nx*8rn -niztd7jl g4j j: yel circuit 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 belod(zaw0bjwat+up k d*4a9u h*: w shows five identical resistors connected in a combination series and papu0zb:9(ja+ak 4wd u a*h*d wtrallel circuit 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, 0f lalf u,kac;d7qv .0 all of the bulbs are identical. Which bulb will be thlf af,a vc 0.q7dkul;0e brightest?


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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 switch and three resi 3wvvz rzn,el ;l*82c2lfil/l8- vxnmstors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. efz 3l/ ;v-xn 2*l 8 lmlcrzv2nwlv8,i
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 bzz :9dh/rfaed1a- ,h, a switch and three resistors are connected as shown. With the switch open as shown in the diagram theed1 zd-b9h ah:fz/ ,ra 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 resistors are b 5wyj *obu05 wr(,eracc;-xgconnected as shown. With the switch open as shown in the diar;-wu b5be5 (w y*0r ccja,gxogram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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