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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 resistoxgcp pk* 1c/-nm5t f3is,z a(fr 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 m ,*pznst5f( a3ccig/p1-kf x 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___ ,ocz .9bidrm.1xsm4*a1mgrp* )ndf p______each resistor is the same.*bfr am)dpx14po gm. sin1c *9z.mrd,

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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 gk8rl qulp5nd4p70znwnejou, 8w (+ ) filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected tnwr n 08kzuplj+ gq u,d84o()wpl75 neo 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 LEDs. LED is thex;3bb1zdd9 bo acronym fdd3 1zbb9x o;bor 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 resist u5 a0v,z3v*4opmanfocbfb62or has length 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 6u 0b vza *omcav4p2fno3f,5 bis 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 II has0k+r ux0xu+e q twice the diameter and twicx+0 quur k0x+ee 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 the sa f-dq8,fpn6qny- i d9kme material but has twice the diameter and half the length of wire nkyq- 6-qdf8ipdnf9 ,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 resif.dxnb 9vdh9ne5g/b. stor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens tnvhbn5 f dxb.e9.dg9/ o 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 Thomv5 yq *rbwl9u8as Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a*q8ywu95 vblr lightbulb be 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 rescog1kle)g n w3l;ent 6 im798eistors are made of the same material. The length and radius of each lgne9 ;c1n8 gme6 ietw3kol) 7resistor 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, eaccr/(szg/a5gn xkbxn0 2 07lxyh of resistance R, are connected to a battery in the following way: “Two 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 in0nxl/rzn(5b xg 7x/ sc0ya g2k 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 mpqm v( s-2i3aaccompanying circuit diagram has internal resistance 10.0 kW and the ammeter has in3 p(maqs-vim2 ternal 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 cirfk 5/lcsdu56 x1ub4mecuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors i5bulk 6f4mx5d1u/ c esn 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 the r+ manc yz1 vc5 ,va( (0nujep/tt5t*sright. If the current in all three resistors is equal, which of the following stant (* t5rna /jzc0ctys+v,uaemp15(vtements 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 rigo+a j*d+ri hd2t* (glght represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cellshj* g + lr*(toddagi2+. 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 i60sa rwdf:8afollowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 ar:fw0a6s a 8dire 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 lightbulbx)wi3 9e 7z8 6j*k ahspk3q++tua fsels X 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 samf+z3t)s wq6 ul+e3xj89 ase7p hi*akke 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 cv6:i- z p4*1,)whfhvqc )twzzc2,pcq wa xji0oulombs will pass through the identified resistor in 5 seconds once the circuit was closed?z,h qp0 vwjaz,4)6) hz xc 1wctwq*2 cp:fvi-i


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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 following3ih5 xj6a . i8cb5olm dcc+5n/ctc/ok simple circuit have the same resistance, which would dissipate the greoicbx/5tc.+i55mo c kcca hn3l8j d6/ atest 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 accomp is)ts2i1sqfwqy 72 (:gu/euk;d4zkkanying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the powsfs)i(qi4sk wq:12u;ud yk g/k27etzer 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,*x; tuk4* ,a( b5qbd r;fdk.wonz dw9h and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0;oqw ,k( ;9bzt.uxrn *df h ad*4wb5kd 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 p 24f*ptqxgq) resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the currentpg q 2)f4q*xpt 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 max838hz 3p-cgw z9 x asgcqz3sp:imum value of the currpwgzschp3 s-qc8az3:98 xg z 3ent 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 opera2olgwn5o(k zj xgunb (/* 2;xfte at 120 vo g(xk25o oz/ngblw ; 2(*jnufxlts?

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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.v*nf4 qpat8.f pb aey 5ic+2k flows through a 4 ohm resistor that is dissipating 36 wattp4 + a.y8efqv.25c nafkp*itbs 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 ir0tq +x4g (katw.yt kd*on used to press clothes is marked "120 volt, 600 watt.” In normyd4 ktga0*.ttqw(xk+al use, the 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 produceh,81gs m,rvo fzwx7 ich7g3y )d by a circuit containing only toh ry1 ifg8,,737zswmg hvxc)hree 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 rgxa p8 63dzesdo3s1wh ;(shn-esistors. Which of the following equivalent a13 pngd(s-dw;e xh 3ozhs86sresistances 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 valzq-gseatt0 g1vpj*:so(7qy ;n1m ta,ues can be connected together in different configurations. If all three resistors a1qs;01* ,oztj(sg ap: nm-aqt gyt7evre 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 aj;z ,8 bewdys ((ea9kc 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 resistance of the bweca ybd(;e9 8 zjk(s,attery 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 resi/w1pji/uh65zg nzis zqh33 k2stors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following stateme3 /u p kqh132jzhsz6znw/igi5 nts 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 iqpi x3259qi put has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.q59q i2x pip3u45 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 dissipating kf ;y fdy8wddqe7fx;9* o/ei ;uet4(n36 watts of powe/u;7f ;dfe8iwe;(ye* kdyxqd4on9 tfr?

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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 12c9 pztho+t28eyto:/y w4fai; 0 volts. If the pr:9f cti;h yy azowtopet42+8/ice 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 conti7hyc.x 7was 8enuously for 1 year at aaw8cy7xe .h s7 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 po-t ,vein1p- ofwer of 24.0 W associated with the bulb. Which one of the following choices best represvi,pnt-ef1 -o ents 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 a computer rated at 500 w66*x p*bwjv hratts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum n 6jvhw*x*rbp6umber 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 resistorsm9y2n yhy l4b( to form a simple circuit a94y( b2 hymnlys shown 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 tf:qno,rhcf9x9*qg64/pps1 nh dunn5o form a simple circuit as shpfsug95h 1c/:q x 9fnpndnrnq6* o4h,own 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, ,lli vg ls191kan ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown l 9s1,g1 lilkvin 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 ab2 2yngms.1 yicqez+h q9 ky* 2-fcr2ammeter, a switch and three resistors are connected as shown. With the switch open as shzc2af ky s 92eqiyq-2bn*rcmg21 +h.yown 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 y -t86wjp c* jn,s9)z9fnjvfuswitch and three resistors are connected as shown. Wivp -znj *tcnu8j99wjy)f6, fsth 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, vfh2ntw-;mqgfg 2wx30 w8ub2 what is the equivalent resistance? Assume that all wires are ideal, the battery-2f2qgw vw 2; n3 wfxgut80bhm 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 shown to the pil+z.u:io6 z right with resisliz6 io.zu:p+ tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 concwcsp-5sm1n k a1 zobi-: l5q(nected in a combination series and parallel circuit to a voltage sourcacq slcw: o-(i15bp -nmz51ske.
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 idky-p(lq -wt7 yentical resistors connected in a combination series and parallel circuit to pyy(7qt-lkw -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. Whivrt tpl+x41mis q:.q. ch bulb x. 1+ilqt. vrsqt:4pmwill 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 switc/ w wc79adm4ziii :t9er7xa7 dh and three resistors are connected as shown. With thezw7 9 : xcd ra7at9eii/4wim7d 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/3 bjqo) ny7cnsa;ov5 +sz ,nk ammeter, a switch and three resistors are connected as shown. With the switch opko ; sqb+an3 j7z/v5noycsn),en 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 battercho:jg 7b h;5zy, an ideal 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.bg;hoh 5j:z7 c
When the switch is closed, what would be the current in the circuit?


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