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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 th8yas dxl3 wi c g,:ttvzczk.2ax m3-rf8nf638e metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resir8 x:wtz3scca,36g 3a8x8mvdy lkn t f.fz2- istor 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 connect crbd42hpuzt) 1 :sni9ed in parallel, the_________each resisbrsu)itzpc1 nd :h492tor is the same.

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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 filameq/axn/ffr uiaqyky o5h;,1,0pb: of : nt to become white hot, while the larger wires connected to the lightbulb remain0p/ qoka, bfh y/y:ri ;fo1nf 5:au,xq 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 ligh;f7ios mbaea/gc7;9*uj n/ pats are being replaced with LEDs. LED is the acronym for which one of the follow;cga;am 7eo /bfa 9/s*uj7n piing 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 gr.rb2rhzoh8z -d3ea i8 aphite resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it r-8ihe hz8 ob .z32darfirst 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 the same material. Wire xny x-w e(vg5 me);n3tII has twice the diametexgntw(vm; e - e5)3ynxr and twice the length of I. 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 thmmn08w -nrjiuzzg) 4y 6vp2 s9e same material but has twice the diameter and half the z -u4nsn6wg jmrz)mp0i 8y29vlength 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 haskiml6ad *8 o qz)2vc-mac,v* c length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. Whatik*ovcz8 cd-lvm,*)6m aa 2 qc 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 Ediso**vemc8)*l jz0 ozkmd n 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 li0lzc*oejz)8 m*kdv *mght 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,4e :pmtv6yf4ru 7mtq material. The length and radius of ea,f 4mr:4myt6pt vqeu7 ch 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, are connected to a batteryt+,,lf v0ruc7w :dtt e in the following way: “Two resistors are connected in series. This combint0:t ,e7 cwul+t,fvdr ation 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 inqr13 6,gmb llw the accompanying circuit diagram has internal resistance 10.0 kW and the l,q1lbm 6r3g wammeter has 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 three bull3-kct1unl/9oy rv x6pbnr-,bs 1, 2, and 3 - represented as resisl 9cnul kx- 1b-ro/ ntry6p3v,tors 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 circuitc9f g+ d-)vjhau: gec. ds-j *.taav2b at the right. If the current in all thg.g ef2*j+sth va.-vaudj9b :-c )cdaree resistors 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 simple electric circuit compo -,fhagc,i2q *se,ezfi vj;a (sed of 5 identical light bulbs and 2 flashleaasq i-h 2f*;ie,cg(vj,f ,zight 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 statements is NOT true concernd rykun*lc5s;e, t1;mih: -+ c wi3xaxsp7s+ying the simple circuit shrh7xyki3x;y1wi+s:a unl st pdmc,+5e- cs ;*own where 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 co;tirvp*x.c7u ak8dd.zg+/i 3 lw s1qwnnected 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 batteudz3vp .sdwa /i*.q xl+k 1;c7t8w rigry, 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 identified res9r 26r-kijukdcg :mo; istor in 5 seconds 6o i kc9rj:m-dk2ru g; 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 following simple circuihf ni 3l8oybfgx789.u5myisme:))pu t have the same resistance, which would dissipafp lhbyy u:9n 85873oe.)g umisxmf)ite 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 current through thew6ad npec v/-)hp,u tf ,*i:ej 6.0 Ω resistorhw6/j,v: pd *cuiep-eft),na is 1.0 A. What is the 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 resistors R1, R4b,1y t) :jjoqb *nmvy1mny;h2, 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, am v1m) j1qybhynjn:bo,yt4 *;nd 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 andR3 are co b,:lw6lmdf m8nnected in parallel to a battery. Suppose R1 has 2V acb68, mldm:wfl ross it, R2 = 4Ω, 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 1200y)i/4kov-d qa watts and 120 volts. What is the maximum value of tdv-4 ik)a/qy ohe current under these 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 resista0qy7c a4v :agcm x:t)maqwk8 :nce of a 60 watt lightbulb designed to operate at 120 volts 0q4k:y: ag 8 amwm)ctqva:x7c?

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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 through a 4 j- f x.o vbjx-gfja )v0/xd6j0ohm resistor that is dissipating 36 watts of p j)xjx b.a oj-fdf60j g0v-xv/ower?

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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 t4ae7:2vh*dc xw .svl qg(3txto press clothes is marked "120 volt, 600 watt.” In normal use, the currxlsct3(w 7 x*h4:qv2gd .tea vent 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 resi4rd* 5pmro m wf5p*s6 ,(bnlwzqtdj .4stances could NOT be produced by a circuit containing only three identi(tqprw nomf4 6z5*4sdd 5 pbr*,mlwj. cal 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. Which o 6h4 fz,1 yt6zejhwd.ktd* /hof the following equivalent resistances CANNOT be produced using all three resistors66h4dhk te.y/f w j1z ztoh*d,?

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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 q8d*uj,t/a(ifiqd ne ofpi:axr)owh c (6*15values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resis1a5a tc,xn i (/do hr8e wi)6o*qiu*pqfj(fd:tance 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 feh yu)(lf;6 aconnected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series usi l ;e6fhua(fy)ng 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 resisqy7gw*+/l cb cf ts-c0tors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about t- 0+/cyfl7q *wsgbc cthe 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 resistance of 1+mjvox788kcrxo550 txd;zbd 9 y6 ie3r xf ,xp2Ω when operating at 120 volts. What is the minimum amount of time that it would take toed850y,zk j +xpi 7dx8 x trx 6o;fr53oc9xbvm 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 resistor that is dissipa3) :2xpfkotl fting 36 wat tkplff)o 32x:ts 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 heate t(zt+-xoetg:hm :8wk r draws 13 amperes of current when connected to 120 volts. Ifgz m8 t:t o(ehw-x+kt: 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 w1z3ahfu6gl3yz ec( fe:* le( pould it cost to keep a 100W lightbulb lit continuously for 1 year at a rate 6zuf(3geyazl 1*( lpe hc3:efof $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 pow4(r/fc mspn m/ b-eh+yer of 24.0 W associated with the bulb. Which one of the following choices best represents the resis+h4 -rm/sbc/ y( epnfmtance 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 p ae+loqfd 8a 81a;3bc7g3vao 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 38lpa;qcveaf7ob1 3 ag8+ o adcan 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 four resistors to fou jy4hzygii 6z(ff:-5aij;-t rm a simple circuit as shown to the gizzj:; 6ffiut y j -4(y5a-hiright.
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 resis 0qnw1j+ rafh8tors to form a simple circuit as shown to the right.h0 8waqr1+f nj
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 ideal ammeter, a switch and three resistor /hds8 p o4gc)7quqhw9s are connp8sq cwqg9 d ou7h4h/)ected as shown. 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 ideal ammeter, a switch ap9zb0 ae4 uc4owtwamzv66u(. nd three resistors are connected a4 zt6 a 0zbw.ue up4(wm9avoc6s 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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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 res.*hw7 zmcqp-8 vhpwepv:tn0 0istors are connected as shown. With the switch open as shown in the diagram wp0h v:zqp*8 th .0m vwc7npe-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 eq9uc7 3bytfv u,uivalent resistance? Assume that all wires are ideal, the battery has no internal resitu ,f97uvybc3stance, 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 shown to tl 9vt1-x42s *ja;lifm xzs 3ip-lijy1ikv + w/he right with resistan-slyji ik/visl xltzw294 *aimvf1 -x1+jp;3ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identical resistors connected in a combi le zj7ixq*7s* pyon12nation series and parallel circuit tol*es zo77 pnx*yq21ij 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 i 1+5d,dy:6jk x b4 yknh3wv f6rwubk)ydentical resistors connected in a combination k6dxuh1r y+ fywn5kyb:v6bj wd,43 )kseries and parallel 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 diagrmit+nqk) t*/ywv i6k9 np16km*: 3eq +fbhly gam, all of the bulbs are identical. Which bulb will be tnmepwgtlk 6+ qt9kmyn+ :k qy61i*f3ihb/)v *he 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 iducf,3m1kxz06 m h/,atlhu r4 )nnf7l seal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. ucal nltf7rm 4 ,6,hfxs 1)mnzh 0k/3u
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 rez8 l:lc*nh(e esistors are connected as shown. With the switch open as shown in the diagram the ammetelne8*l:z(eh cr 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 8x ;s3ppah0nfconnecs 0p ;xnp8hfa3ted as shown. With 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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