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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 currentu6 lkbf+4vjc/ e ,pwufz b-uot y7r/;, exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of elew4o- b+e,pc7rluv,tzu f/6/bjk;y ufctron 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 connected in parallel, the_________each reo-uu36c.1em nrw fwq3 sistor is the saow6 ru-u qfwe31n .3mcme.

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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 thei193 jwzug+a r filament to become white hot, while the larger wires za9r i3gw+u1jconnected 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 are qk06pe+0dlitg sql6 :being replaced with LEDs. LED is the acronym for which one ofk:lsqeq+g0d0 6p6itl 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 cylindrical09 d p3mg**ffecy qy-k graphite resistor has length L and cross-sectional area A. Iqm9g 0*fe-k* pf dy3yct 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 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 has twice tvyy6ekj;+ps xq;i;*ehe diameter and twie;x;*seq y+ip;6yv k jce 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 l.x q5-d8yp)l,v j3p ;whyjo (tgek8sme material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resxsq8;.yy(eh,gt jwv38o l 5kp dj -l)pistance 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 3-dlzysbb wlrrm4r8pj+x 2,m z*46ouradius r. This piece of material is then drawn so that it is a cylinder wirr6*m s8-l4rubx2+ z ,l ozdpbmjwy4 3th 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 brighter light bulmrx e/, hew,*bs5/u5ccde 4 tcb. He decides to modify the filament. How should the filament of a lightbulb b/r*w,me4bc hec cxut,/5ds 5e e 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 resistors are made of the same material. / u7:nbq5ofvu wz.-7ljw 5zjd The length and radius of eachuzj n5lzjd7-v/o7 f:wqbu.w 5 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 connev3el5 a0dnfn9 cted to a battery in the following way: “Two resistors are connected in series. This combiv 5ef03ld9 nnanation 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 accompanying circuit diagram ha(4a bu6fjzpv2 s internal resistance 10.0 kW and the amm2jaz6( b4f pvueter 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 io7c/r8o /kql right. The three bulbs 1, 2, an lqo/8c orik7/d 3 - represented 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 the right. If ;rl1qw5sz x0qnfiw8 (the current in all three resistors is equal, which of the following statements must be t n5qw;qw fx0iz1(r8ls rue?


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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 ri3-i0dfrv8drs ght represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight celid03rf- 8vdrsls. 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 followiew 6 mx815ccnx5n jzu:ng statements is NOT true concerning the simple circuit s uj6wcze 8:5xnx m1nc5hown 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 connected)n mzo9y0jou6 ,,bord 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 othmuoyozd,r9,0 b6njo ) er 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 ident;b4obd:7 mxhfified resistor in 5 seconds once the circuit was closexb:dmofh; 7b4d?


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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 followin twoa/ .3 ;l iwtig,j y414gobr fejzywt6m;*)g simple circuit have the same resistance, which woul4,y; *wlttj3;ob oatjig fe 4 z./1rm)wiyg6wd dissipate 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 circur;mev1i 0p4jb it diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the popr b0 i1ev;j4mwer 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 Rd3pt. /d.1t jc -nm3x8x-dxyl1gfrnh 1, R2, and R3 are connected in series to a battery. Suppose R1 carrietl1gx.y -dp /- hdcxm81ntx j3nr 3f.ds a 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 andR3 are coygu/f1b6lnwrs0 y * o(tn* +o lcbsj52g-aqv2 nnected in parallel to a battery. Suppose R1 has 2V across it, R2 = n6fslsrj(-/* blto22gvqu wbcn o1yyg 5 +a*04Ω, 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 /es*sireamtt -)+88c5ivm w. h qxc z11200 watts and 120 volts. What is the maximum value of the c+szq-.8 a *tvx tshc1ec5iem8im/ )rwurrent 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 ovv00xqt 4 nrc;f a 60 watt lightbulb designed to operate at 120 vov0n;q4t vrcx0lts?

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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 t4w7d0oox u br7hat is dissipating 36 watts 7 rx40udb7oowof 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 c: 1( woq6dvmzz uu);qg4 gq*wrlothes is marked "120 volt, 600 watt.” In normal use, the current in it iszq)mgz*61odwq4( uvwr:g qu ;

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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 producedd. ihyh2qfd hu7ef:-. by a circuit containing only t- h.e: yfiu2 7hqdf.dhhree 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 threewm*(i 9 hv/ou*pdpik 1; *quvc 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using a pm*ukc/dow;q (u9vp vi1**hi ll 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 mr6m0 /mml;i s5l4yh )+gpa 2bc l+gcwconnected together in different configurations. If 0glm2h )mlg4rc;c 5a+/p6wl+ msym biall 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 (*g ,kfakjt-/lhvc+ o7jo;aspower P is dissipated in the circuit. Hoj c+v-, aft;o k *oajkhg(s7l/w 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 resistance R1 and R2, are connected in p-n j +g;pmfy -vccv:u7:eiiz7arallel, the equivalent resistance of the combination is 5Ω . Which of the following statements abjf:ic- ;v+- pvn7zge:uy ic7mout 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 hy2g:lfhrd )y )as a resistance of 12Ω when operating at 120 volts. What is the minimum amour) y)hl 2dfgy:nt 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 a 4 ohm resistor that is dissizr c- v:py7xa:os6an;pating 36 watts-vzpno:;axar y6s7:c 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 currenhh l- coitpq euc-j-a ,07/ml8t when connected to 120 volts. If the price of electricity u-l-70qm -c 8ilcpehjt,/a ohis $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 continowr.5.8wimtm;ube c+ uou..w ce 58om+m;triu bwsly for 1 year 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 throug; lyz2zl fyjnt3rgt8y549op45 a gnt .h a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choj t43 olylyna28r5n9t4pf; zz5tgg y.ices 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 yu,;b 0m 7xlj0b. -q5-+uva kgyu ofbpof six owns a 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 n uukj-0 .yq,p5gmu7bbl+yo-fvb0x ; aumber 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 resistors to form a simple circuit vu z;frx)cylw0zmo-.5 r7ic 7 as shown to thc yu)7-7l rzr;xvm.zifcow50 e 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 to form a simple 16vmp h gu-3cmcircuit as shown to the rph6m-3c1 ug vmight.
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 7 tqjfh.u6 my0v; awi;switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere .j0;;wyh ivut6amfq7 s.
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 are co3np 0kf 1hdrkqvt:*9l kp 9ja:nnected as shown. With the switch open as shown in the diagram the ammeter reads 2.9: :d l qrpnkk0k1thj9v3ap*f0 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;e0e boc/rq d;, a switch and three resistors are connected as shown. With the switch open as shown c eqre;; od0b/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, what is the equivalent resiv8fud2 n)sny buo-/:1u w fln-oj9z+astance? Assume that all wires are ideal, the battery has no internal resistance, and jv2-/n9nsyf uod ) l8ob:w zau-fn+u 1all 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 equivalenv *o o(o*62rurhg.l jkt resistance of the circuit shown to the right with resist rhok ju(2og**l6ovr .ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 f+o 5abphddur 8mr5 (j1ive identical resistors connected in a combination serie+hmpjd1r(r5 b oau5 d8s 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 identicalcvz3): /czhrt resistors connected in a combination series and parallel circuit to a voltage ) 3zh/r :tzccvsource.
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 areh -kj /8cksqu oj;b-o3 identical. Which bulb will be the brightesjsb o;j8 /u-h -cok3kqt?


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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 resisw g e*x:+oy*vhtors are connec:w+x**h egvyoted 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideaa i lgwvley*7ui 54/0nl ammeter, a switch and three resistors are connected as showgw4 a0nu5/i * leiyv7ln. 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 resisi bn cv;trj;r c.2-qv1, o4icrtors are connected as shown. With the switch open as shown in the diagram the ammeter reads i 4r.cc-,n jbv;o2tqv1irc; r2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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