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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 mb kuotkwsc p*)n:,7d98e1 mav+f.hh s etal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow throu vh9ca:u*81nk.7hd kw+opm)etb s,s fgh 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 connected in parallel, the_________each rep ; bubj5b+gq-w7ud4csistbupu4jbw qcdb + -7g5;or 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 fila yfpj* x67 aq-9oqcm1pment wire of a lightbulb causes the filament to become white hot, wh7paf* xjqqpy- o6cm91 ile the larger wires connected to 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 aresd* r(ao j)9p6wdz3fm being replaced with LEDs. LED is the acronym for which one of adsjow(*6)3z m9r dp fthe 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 rer.*pga72nuqa vili7, sistor has length L and cross-sectional area A. It is to be pl2* qa.7rai ,n7vpiug laced 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 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 sicdxz1q, 3 h;dxrnq.5ame material. Wire II has twice the diameter and twice q dc 3z,.qix n1;hx5drthe 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 the same material but has twypev2s- e5mvr lf/l 89 he7,xrice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y wo -,mr e85eleplvvr y 9s/2fxh7uld 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 radius r. This piece of mapqeym ;+9rl yf/n4w .i9j+h8f 0skvooterial is then drawn so that it is a cylinder with0 .epfkyn+hmqjfis; 9 +4/8or vloyw9 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 Thomc.2: 10c;hdz izyem0zhz-lunas 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 0en.dcm:1 z c 2u;hlzz-yh0zimake 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 m p :vv2mjorr,+aterial. The length and radius of eachr,ojrm +2pv v: 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 resaynb64m*0 po8epnw e86zhwn :istance R, are connected to a battery in the following way: “Two resistors ar 8nn hw66wb0emzoa8*ppn :ey4e 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 accompanyinggqpfyrm l aq/9wm54 9d5w1 .ej circuit diagram has internal resistance 10.0 kW and the ammeter has internal resaq55wmjq ./ 1dr pwey4f9m9glistance 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 (xh f(di+oo0m r9ly;e. The three bulbs 1, 2, and 3 - represented as rfyh+ dmr(oe;x 0o(9ilesistors 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 circuie kaco5mbt90 i3dw1r7bb, ,x zt at the right. If the current in all three resistors is equal, c,btkre z3ai1 o5b9m7 0,dwbx 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 fi 2w+:hjur2 nright represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulj:rn2+whifu 2b (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 concerning the simple )u9r -p elz/apcircuit shown where resistors R1, R2 and R3 are have equ za)9l/uprp-eal 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 cog ujo 22w-vgq:zqvi6)dq2vg( 2x 5yto nnected 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 following choices best roo) zu x2 -2vq qd ggy2v:ti52(wjqvg6epresents 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 passu4x ceq8trk4ey. j7q1 through the identified resistor in 5 seconds once the circuit was clo cj t4qeyr.ue18 k47xqsed?


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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 svi;orujv30g 7/7zg3 gwa k4 emimple circuit have the same resistance, which would dissipate the greatest po7ig0/g e 7okw;jura33 v4vzm gwer?


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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 accompanyin4:vv czx24wh mreo: -2fnmv6qg circuit diagram, the current through the 6.0 Ω resistor is n2v 2ec xqmvo-f6h:44zm: wvr1.0 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, R2, and R3 are connected in series m ye.f(6fzvlt+2 p ,c.dwo3gc to a battery. Suppose R1 carries +,.e(o6d fw3.fmlpvcz ctgy2a current of 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 xvgotzuk *rq1ye+) q()ftm3n8bn5 2w andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the curre)uvbnm 8t32 )k5* z1qqn( xrotgy+wefnt 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 120 volts. What is the maxo13(xuhh5zii1 0 vag fimum value of5 oh3xf(i vi0u1aghz 1 the 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 resistance of a 60 watt lightbulb designed to operate at 12* qzb0./jk-;i pmibb r0 voi q -.impz bkj0b*;rb/lts?

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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 ohm resistor that is dissipating 36 iiq89xx b yk60*cvc 2qwatts of powx c8i *b c6q0qv9k2ixyer?

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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 0ua4it4d lqd- ve .9e;jivqp3 is marked "120 volt, 600 watt.” In normal use, tu9elpd3v 0;ia tveqd - iqj.44he 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 could NOT be pro ;p4xu8ldtvpw5j;8bk5b.i8 erg,v a b duced by a circuit containing only three identi5 ku; vx 4ba,;pdrplg.ej8wbibt v885cal 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. y xyz.s7 +9jp1rozaf:dm/ hg: Which of the following equivalent resistances CANNOT be prod+9j .p /r1z7ymyofagz h: :sxduced 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 v,od+jy63)x1e(fpix ko1 zey:eyqcn -alues can be connected together in different configurations. If all three resistors are used in a circuit, how many diyzc(:en f1qy)e+jop x16 i-dkoe,x y3fferent 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 colc3blb,.fzako :zyp- 0*qo) i nnected 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 using the same battery? Assume the internal resib,a.*)3z:0fk ybpil -zocol qstance 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 + ku,,5mmn+ttna vup; connected in parallel, the equivalent resistance of the combination is 5Ω . Which of th+akp,nt;t m+uu m5v,n e 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 +7u py-dtdg l+k rwdwf(,r3 2ga resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take(+3gtd2 r kr -wl,f7ddwy p+gu 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 resistm phhd+uw(x 2yms: 9fb1b1y ;v0x*rwyor that is dissipating 36 watts of p* pdxhy19w: rw s2(v+m;1xf0 mhbuy ybower?

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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 ampe+f,q:zv+oj hh do*96 i9qvhyqres of current when connected to 120 volts. Izf96, jhyq9qhov i+ o:dhv+*qf 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 100W lightbulb lit con/ ioq a.f:7lqz5ma5q6ei fxg :tinuously for 1 year at a . q5:6fgoiif 7qezxaa m5lq/: 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 i0 bqoc45ror( q uw7;fresults in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the 0r 4coqbr;u7f 5(woiqlightbulb?

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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 icbl,) t-zdprn: vnkdka s0l5+pp 39ok /hl6* cn a 120 V c* l/od l 9hak d:,rpt p0pkkc5 )ns-nbcl3v6+zircuit. 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 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 reo)+ hczpy1 *qdrhltvfv:) 9:yx5j xd 3sistors to form a simple circuit as shown to the rig ch qxovj):y9rd h+z ) vy:l3*ptd5xf1ht.
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 iek68i,dg350j3kvexgb: v l 5 buh fn.as connected to four resistors to form a simple circuit as shown to the right.n,5b kf: 3vjideax lge8 kbuhg503v.6
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 threhc :3faiz-sf4e resistors are connected as shown. With the switch open as ss:3h-czf if4ahown 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 and three resistors ol 3,pi;m+ty vkhnq,- s69kuf0nlm3 k are connected as shown. With the switch open as shown in the diagram the ammeter rkqk op tu09 n3,sl mikm-,l3f+hy;n 6veads 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 ammeter2pwz ;+qaia;g;4,msu8 9a / mluirldr, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readsu8;;qam9m2iizr sg ld , prlaw+/ua4; 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 k)b0k(d+x 9; n*doqpez8n u,ekf+bw ett9qz,the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internabb wd(d knqq)+k exn9 te kzfzo,e8p+,*ut;09l 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 resistane9wl 9 qyfqh9 (o4uae,ce of the circuit shown to the right with resista9e,l q q4 feu9w(ah9yonces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combin*dvthy64 se7fation serie*fty v6d4 eh7ss and parallel 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 below shows five identical resiojr h2ub .;cr.x7vt 5kstors connected in a combination series and parallel circuit to a voltage sou j.brchor.k5tvx 2u;7rce.
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. Which bu/+-ih;xv lve alf, vs8lb will,lvvxsie; 8-+vhfa/ l be the 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 sw; 8nctx4h.ao;soj y0t4.eu vy itch and three resistors are connected as shown. With the switvh4e.; at;nyo s4j8xuo t0. cych 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, -srsqtwc /rwt lqzz1d6294tlmnrprbs5 244. a switch and three resistors are connect mr2z4ntq4 -1 5bst lrpwr/l42tqsz. 69rscwded 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 res/tbn*y1vb0y y.xa7fjz +8 znsistors are connected as shown. With the switch open as shown in the diagram the 1 by78x+0/ tsnzj.yyvabf n*z ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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