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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 s v-0c vacj.-qw1e bqu8tzx8- electric current exists in the metal resistor 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 fiel8-suj-x180qwtev.c zqva cb-d 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 r9 9jb)hi:lxf fesistor ilfi)j 9xf9: hbs 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 f;i+5 gxj1-. evgbpffd ilament to become white hot, while; g x- f15i+gdebv.fjp 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 are being rnol86y s e)md3eplaced with LEDs. LED is the acronym for which one of the following cn om63elds 8)yhoices?

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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 hae yzne0c:m;(i s 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 is the ratio of the new resistivity to thzene0ic: ym (;e 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 rbb9 0(ofxw9 z *vab0pd02fwomaterial. Wire II has twice the diameter and z0w29 x*o0bf0fpvro9 wb a(dbtwice 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 thj9j4,9jhfdt+g 0oqmhp. e l3ylyz 6( ge same 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 af d0legzpjt9+yh omj649y q.g 3j,h (l 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 n)y8p q .ft-axm* ;ittmrqpp*k*0,h*om ej*qlength L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the h qt*0m,tj*p *kpop.eif8ra) ; x-q*yt qmn*m 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 bulb. He decide:sta63c jux rxa8o l,(s to modify the filament. How should the filament of a lightbulb be modifio:,c r(x3au8ts 6ajxled 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. Th-k2 xd+ eg+h *zwk5jmje length and radius of each resistor i5*-w2me +kzjk dgxj+ hs:
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 battery in the vy4gwz -l,mx5- 4ll24s.gsx ty4yafffollowing 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 in series to a fourth resistor.” What is the equivgyf-x,v - 4 l wxmly2a4sys.l454gtfzalent 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 diav k. m3, jro)o(xwiv-bgram has internal resistance 10.0 kW and the ammeter iv.,j(ov 3rmo-wk)b x 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 bulbsb)mhvg)tr/ h 7: (ofui 1, 2, and 3 - reprh)omvf)u/tir7b hg (: esented 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 simg,* bd6gui5mw ple electrical circuit at the right. If the current in all three resistors is e,dm wgb5i ug*6qual, 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 p roi/,;x s lmp69cuvz j-)ouiwcc13*right represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which b/v3,1s;ioucpuoc-i*) rz 9jmpwx c6lulb (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 t: n2bxg2cla)//h8fanonv fg , 4cn/jvhe simple circuit shown where resistors R1, R2 and R3 are have equal resistance 84anjf/2o xagv/l 2/ hgfvnnc) nc,b:s?


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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 in seric 74ksp0z6aqf es 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 p4afz6qks0 7c 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 t mkh12ev lg+)*mrrb 7lhrough the identified resistor in 5 seconds once the circ2bgl7vmlhm1 )+ e*rkruit 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 f:l/cj ib q,a (qn9cor.ollowing simple circuit have the same resistance, which would dissipate the greatest power? n br.qajco,: (/9qlic


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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 the 6.0 Ω resioh3qm 5isj,- dstor is 1.0 A. What is the dj5ios - mhq3,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 to a bmb/l o v rq++bvv)k+ iv28xd8lattery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. Whal d88+b) 2kvli+/+vmvr xqovbt 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, R2fv:za7 ;v8 rm+0wq zoyd6fo p+ andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Whatwa+pq zfz0+m;7ofd8yvo:r 6v 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 1200 watts and bc4k ixn,(2p1n yp6ip khk;;s120 volts. What is the maximum value ofp ,1ps; inkx2(i k p6cky4bh;n 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 resistan;gd8 pjn(;m ir h9jv;rce of a 60 watt lightbulb designed to operate at 120 volts?vmih(gn ;jd;9;pjrr 8

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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 throug; cw:nea z:-e3o4atmt h a 4 ohm resistor that is dissipating 36 wattw mecnt-: a:et3; z4oas 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 7 p s *vc.m)yhjgu-jf6used to press clothes is marked "120 volt, 600 watt.” In normal use, the c.)musvyphj g *6 cjf7-urrent 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 produced by a c8*+rsen.b) cf ic1ejy ircuit containing only three identical 6Ω bfn*e +i sy1c) e8.jcr 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 of the following +s/4g+nade4 qaf z 2nmqi4hr 4equivalent resistances CANNOT be/rz2 henf4+niqqm4 s d44a+g a 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 v+n9inhzuf5cy8 o rs( i-sa,-+ mj5 ryls:,yatalues can be connected together in different configurations. If nrtmf5oi:s, , sju cy hlria-a(+s nz5y9+y8-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 resis*e,xds omvfg76p; .eltor is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical r;x ee*f o7v,p.6mdlsgesistors 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 paral/7f dhh)n ipp.lel, the equivalent resistance of the combinatdfip 7.p /hn)hion is 5Ω . Which of the 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 a resistancxq.mj znh;a/ (2,gypee of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take t/gjnx2.phq;mye z a,( o 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 diss ,gqtip)5/u m( -gvnlc e3l 0:azbf- uay7qmy3ipating 36 watts ofugbp7 /at lf3my-mlea() :-quc 0gin3q5vy ,z 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 egv/ ;yba).d tozw 8+ydvnzl)3;:inq13 amperes of current when connected to 120 volts. If the price of elez/.y za v ow;nvn+ btqg)dlid8) y;:e3ctricity 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 5nhqcia 6f)k*keep a 100W lightbulb lit continuously for 1 y i)a*6kfh5 qcnear 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 through a lightbulb results in a power of hm;/p0z.e2k+(jg e kyiz ej5u24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the li( e ujkj/ .gi2z eh0zypekm5;+ghtbulb?

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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 dg2,dqnqu h/(6+h0t0rkmgp g rated at 500 watts in a 120 V circuit. If all computers are plugged into/0r qt (,ddu hq2g+gnk60mpgh 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 connec p e8(8evkhwz7a+zm-f ted to four resistors to form a simple circuit wze(-hvk 88e az7+p fmas 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 f*g ; not +wfgq*ju9a/dour resistors to form a simple circuit as shown to the go/dj*wa g; n*qfut9 +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, an ideal ammeter, a switch and three resistors v2+f1 qaq n(9+eve exwi).qgdare connected as shown. With the switch open as shown in the di1 e(den2va .vfqw 9eq+g+ xq)iagram 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 eg9yw8tyl 9;o are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.e;o8y9l gtw y90 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 rescui8: 54civixquq7d9os emr3 / m cs 6r+5ls)uistors are connected as shown. Wr 9s5 cs xs/v )+m6d87ui5qqeuir:ul3coicm 4ith 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, what zragln 2lv348n0 z7er is the equivalent resistance? Assume that all wires are ideal, the baz zv82n lr7lea4nr3g0ttery 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 oqb7 r/ qcz)x1bf the circuit shown to the right with resistancercqq1/x bb7 z)s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combinate5jr4e ce/6ef gqu u03q,of9aion series and parallel circuit to a voltage sourceq6g 4qj3e/f fo, cuera95e0ue.
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 4ph dldw*c;p1, spsf4shows five identical resistors connected in a combination series and pc4flppd s;* h1s 4w,dparallel 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, a0w tjc ;bk*u 8.rj*op rt6dj.bll of the bulbs are identical. Which bulb w jkttwb*;urjp08oj *cr.6d .bill 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 switch and three resistors arezd 82vx+dqw2e connected as2z8eq w2x vd+d 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 ideal ammeter, a switch and three reshw)iidt8m-6 .-, 8qwuys pquwistors are connected as shown. With i6ui-p ytqww.- 8h ),mq s8uwdthe 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, 4br +yzy,fptizz 67yemu +7) nan ideal ammeter, a switch and three resistors are connected as shown. With the switch open rzt) p6ynb 7+if,yz+me uyz4 7as 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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    总分:50分 及格:30分 时间:不限时
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