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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 currents frv7r hnfa91 (b:lt i9tl tap.po1.- 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 ft-(np17tf. t 9far:lph lavo.bs1r 9iield 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 conn38la+xfi77z c d an)dbected in parallel, the_________each resistor is thel cad ind 83)fxb+7z7a 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 ti wr m+.cak: 0pj1.pu31g)zk8 onwxfmhin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected tu8g0.:njkx+ ck1wpfa3 mr om.z )w1ipo 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 househtcmx adb/c;z-tkd 8:efe 3h.*old lights are being replaced with LEDs. LED is the acronym fd8 b -ehtk.:;f/xatmzcc e3d *or 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 resistor has ldv8a- 4lsdj/qxtl+kd 0: (kn gength L and cross-sectional area A. It is to be placed into v(ld4 g djk-t8d:q la0+ksx/ na 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 ; lue)5sjt1c pupob:-tx 8;v, v r6tcotwice the diameter and twice the length of I. If I has resistance R, II has r t tu-1psl pjc,6uv;c5;)rox tbv:e 8oesistance

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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 twice the diameter evr*q2 rtzvi84 j7 -d 5gao+hpand half the length of wire X. If wire X has a resistance of R then wire Y would have a t-+q 2i rjpr7gz vov4 8*head5resistance 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 i8xhs a 7rm huxk)xi/9sf94 lr+kc7j,L and radius r. This piece of material is then drawn so that it is a cylinder with9xrix+7x) hf9 4/ac,skkrih s8 7jmul 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 6/fpy p1 fovh9to 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 o fh9ypf/pv 16lightbulb 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 resist de9 i.*hbnpq3ors are made of the same material. The length and radius of each resiq9e bn*. pd3histor 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 battery in the e/xm7xh)voqf+3gfw3 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 in series t+vf) 3h7xf/ wg3eqom xo 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 accoe;8j+nddw +mg .bo ;gqmpanying circuit diagram has internal resistance 10.0 kW and the ammet 8qe omj+g.;gn;ddbw+ er 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 bulbs 1, lsg8a8hhva w*o/1grxf1a8 ;l 2, and 3 - r8a1;8 l gf8* hglr oh1wvsxaa/epresented 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 electri98w-nklqaiz 5d nj,mgpi277,ibxi4 npm9t5 hcal circuit at the right. If the current in all three res-4j 75 n,8m7x,bh9aid 2pipkzitnm gw9lniq 5 istors 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 no+untnwbk */7*6wyhb7bfc5ws62j (.fg o nz electric circuit composed of 5 identical t6 +*7bu7 6*yswnb2/cwk(zw5n n gfbfhjn. oo light bulbs and 2 flashlight 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 followingllq)n4htv0wl;t k- l, -uq, an statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equtlw ln0t)k,uhaq4;, v nll- -qal 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 in serig+3 y8ooz c9/nzhpf,h i5wf7les 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 batter8+gpw/3nz9 zhl ,ffcy57hooiy, 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 id/ luvcr9;0pp zt1dp2eentified resistor in 5 seconds once the circu ;dr1p/ l0tce p2zp9vuit 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 (yls fb ji0i.fo1rovl.7mt at76 0j6p resistors in the following simple circuit have the same resistance, which would di7 fo.lal(0ytjtf 17v.j6r i 0 pmb6osissipate 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 throughr.54y3 xn) hkhfjajxl.h +hvxxj0 8k+ the 6.0 Ω resistor is 1.0 A.vl jj 0k.rxyj4.+3 f)h8haxkhxnx+h5 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, and7,6diumd ls s3 R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6. 36duld,iss7m 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 resic ag0a;7 b)g3u.okjrastors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, jrg 7)gbk c.uaa0; 3oaR2 = 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 1200 watts and 127 mhj u,ea4lp/0 volts. What is the maximum value of the current ae 7l,umjhp4/ 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 resip.e*xm s:a -sestance of a 60 watt lightbulb designed to operate at 120 .ep s*-esxam:volts?

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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 dissimfsw9iayo;f 8-j t2.r pating 36 watts of powefsj8a-.wtf mo y ir92;r?

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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 pw:rbfwmkv/q 28(+f2eu(z qn kress clothes is marked "120 volt, 600 watt.” In normal use, t/kk 2nwbz+ 8me: 2rqfq(wf(vuhe 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 produced by a circuit conjdq z21 f67pwctaid fc1p72jw 6qzning only three 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 h ;n2tj604lw(unnqvf m-o6 ov1.0 Ω resistors. Which of the following equivalent resistanceswonu4 (v-62vjt m 6ln; hnofq0 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 values can be connected together ip; wx 6we* unko;h*h7cn different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be p; h w*opuec;h kw6n*x7roduced?

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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 to74b7vet4h y(kw s7 vwdtal 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 battery is zero(sh74dvt4y7v bwk 7 we.

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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 resis)ji +-he46sru4hee aw4)mpyk tors, having resistance R1 and R2, are connected in parallel, the equivalent rj ) h4m)u-skea4y4e+wi e6 hpresistance of the combination 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 a3j-xzn6dzht wdi;b ,; resistance of 12Ω when operating at 120 vhz; it3b,nz-x;djdw6 olts. What is the minimum amount 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 thro8h7g yg+fh- yhfij:3x ugh a 4 ohm resistor that is dissipating 36 watts x f8yhi:-3jh+7ygf hgof 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 current when connected to 120 volto 6gu -zxla5k,1nsum.s. If the price of electri ,6 os.zma1u5klxun- gcity 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:4zw3 nq+f uot cost to keep a 100W lightbulb lit continuouzft:3q4un +ow sly 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 currentt kei0t.gw- n7 of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the re0tg -w7e.ink tsistance 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 ruly,3b 9v2+oe qp ,uxrated 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 number of the computers ca2p,u re3+ b,xqo9ulvy n 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 circuyg6z-pm-7kd zdt qaj54yax) * it as sj 7yxmzp6)-dyz kda54-g q at*hown 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 connectedpnh(uu+ jr/ud//e g9gkebay /8, kj6p to four resistors to form a simple circuit as shownhkp/b( /gn ,+a6j y d/ /pkej9gu8eruu 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, an ideal ammeter, a switch and three resistors areca rs2wvv6x.ip-:dnvt2 0 *me connected as shown. With the switch open as shown in the diagrdx 2sw*e2v.rnt:cv -0 mivap6am 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 ammete.nwgmg .ct(yc vh*b7h: teazr 2bn4b6/q5j .dr, a switch and three resistors are connected as shown. With the switch open ah zg6/5tdmccjve nwb a y*:q.7rb(gb4h.2 tn. s 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 threr/d5pt. nm bnz8pn7ax 1,k c-me resistors are connected as shownn,1.pa 7bm -nk rmz5 px8n/ctd. 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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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 resista j, xm4 yzow0wnuy5.)t,rg:gc nce? Assume that all wires are ideal, the battery has no internjm,0g: ,4wyuyzc. xt nr5g)ow al 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 : 76qbf8nv o kso)byyas6-wd) right with resib bq:f6-n sw7) dv)yook6 ays8stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 3wjwm90 dxc,gidentical resistors connected in a combination series j0 w9c 3mxgwd,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 resistors connected in a combinatizx.wjclxh. +4,3mo f p2 *uuejon series+2 hm4u,wzxeflj .3j xp c.ou* 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 diagram, all ofkv31h o:4gcje-nwdtf;ux ;:j the bulbs are identical. Which bulb will be tuc3vkfj4ho ::-g t;j 1 ;dxewnhe 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 battert5tb 0ozwvt d a.c5(z b1xe(3ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as sz03dtacv.b5o zr 1ttb(5 w(xe hown 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, mg-s g24kg d 8ru:rbx:a switch and three resistors are connected asg 8s 4krg 2x-rbgm:d:u 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 ammeterp( w n.:n-m ecvh;0 gftqfjw5., a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amm.; f5 :gj.c-hw0epnq nwt( mfveter 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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