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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 res +k-7 zdz;hhfihr 7ahp:(yi l:istor connected to the battery. Which one of the following choices best describes the direction of electrodik lfh :rzh -h+(77ahi;zyp:n 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___6:1 c u-0qgpf-jb9a, hqvkvqy ______each resistor is the same.uk g:-q0hva6-qjcvf19 byq , p

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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 th odl869a2sp*klh qyx.e thin filament wire of a lightbulb causes the filament to bec l6x9 ok plyq.2as*8dhome white hot, while 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 replaced with LEDs. LED is the5g5 1*4htaxt z7 twv.znv4a ep acronym for which one of the fol5 t.w*te 4gx7 nztvaahpv1z54 lowing 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 length L and cross-sectio .hnii; +oof*ax rg5f/ily0 b3*dn: lvnal 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 reg;nh+oo :i/ lbffn.yvilxd53 r0i**a sistivity 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 Iz xpyb4 jk(:bg +u8uk:6q)eea I has twice the diameter and twice the l86qx ( eyp:za:ub b)kg euk+j4ength 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 materi,pwu3r uvb:cd17uy.;v m.vre(9 ojav al but has twice the diameter and half the length of wire X. If wire X has a resistance of R then we3du vvbj; cr,pw (1.9:7vouu.ramv yire 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 resistor has length L and radius r. This piece of materi 5x imv.,zu3 gtaglu40al is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this v gxgilu4ta05., umz3 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 d:h20j:d j6gv. ii3gn yf ;cxlmake a brighter light bulb. He decides to modify the filament. How should the fi;if:y.gd0jxv23 ji cg:n6 ldh lament of a 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 resistors are made of the same o) fz3eiczy/,(z;y ikxpg/ui nk e6/6material. The length and radius ui)exyg ,(ikif/ec6zn3;/ / zyo 6kzpof each 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 connectf c+ mtf(gx:u:ea(,by :r*jfmn6 l tx;ed 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 in series to a fourth resistor.” What is the equivalent res6xm+t( :funblfa*(,gx;rfc:t:mj y eistance 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 acco -kl rsv1,ub1mmpanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter re1v k,br -sul1mading 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 thre1d(2lf pmc tc25kbxmdn * a;:ee bulbs 1, 2, and*p5tmkb xaf2: 1m2ldcedcn;( 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 the current iniux+ )96u fiqj65xhyf all three resistors is equal, which of the fol fq iyx)ui6h+95xuj6f lowing 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 electric circuit composed of dcwah.u; +0jm 7iwga/ 5 identical light bulbs and 2 flashlight cells. Which g.iwuamh;7jcw+a d0/ 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 following statements is NOT true concety3u)shxvpe.-:o y0y8q 6 lnv rning the simple circuit shown where resistors R1, R2 and R3 are have equt 3)6:psnl0yqy.euyo8 v- vh xal 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 series9gvlwf+py fnlz 1 )iscc8/j*l5i-9 g s to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ide8 i/gjlffncp9sgl- z1 i wvsc5 l)9y*+al. If bulbs X andY are connected in parallel with each other 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 identified resistor xr ./)nlx )7v :nm-7qyanhyg6vw x+uuin :7nr)/+6n yu7xxavnmywh.q gvx)u-l5 seconds once the circuit 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 z*e:xduh)guy 3+m h+ dfollowing simple circuit have the same resistance, which would dissipate the greatest powergxy*muedzhhd+ :u)+ 3?


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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 circuit6x+j- iwcium ls* 1dawo07o;h diagram, the current through the 6.0 Ω resistor oadc0xs mil1ow u 6;w7+ji-*his 1.0 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 R1,4-mdo-5,ek: 0oxm-nqztvdetp 9u)j k R2, and 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 dissipat0d -)5xn j:pke9 -ot 4mkzmuvo,-q detes 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 connected in parallel tzp3d 8/ (mj*oz7 ok:vu6diwnu o a battery. Suppose R1 has iwu*nd8(m/o :zjouz kp6 dv732V across it, R2 = 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 120 voltszo +- dpd2d)j1k+tbay we**g/g n/ hff. What is the maximum value of the current under theseb wjzf- ka)e*+ nfdp/2dy+dg go 1ht/* 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 opera-/,w *d4ze/i 4k dp;kqactdoite at 120 voltct*d-wd; i,dop4 /4k/qa kez is?

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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 re4n0 j115n7fj--k6 tbupsndxyw 88t nk u y0rlasistor that is dissipating 36 watn8t nxu-s 614t- kn8 bydwjl0pj17rak0 uny5f ts 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 used to press clothes is marked "120 volt, 600 wat*n;e o(d7lnlt*z2ve dt.” In n d*e no*e2vz(;l tldn7ormal 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 produced by a cirro6z n3i(rdn;bqt * a- ;qk)wsv aj*-:4dxgf mcuit containing only three identical 6Ω resistrz;gbaqa--;v ms*jdn(q4w t :od3f6xi )r* nkors?

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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 clra1yctclu dvpn *g0*5*x x/ne- 2l/ the following equivalent resistances CANNOT be producednxc/5 upnyrt1eva cl 0l *ld/*2gc-* x 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 differex gx c9f:v-a84 sj3ps7yedcf:nt values can be connected together in different configurations. If all three resistors are used in a cya47p - f3s8dxf::xgj 9cevc sircuit, 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 connej rcp x*-jo9l6cted 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 batter xjl *r96j-ocpy? 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 connectedu7o-lv5a grno7+v ;8(o3lde hxub l*s in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resise v;dhblx ug3na(7l lo+r vs8uo-*57otances 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 hasg ;yvf szvoxb1;*v8jsk48a *d a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg ofda8 1gz4s;vxsyvbkjo**vf8 ; 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 tz9m/3va: iic9yr tiew c19ms* hrough a 4 ohm resistor that is dissipating 36 watts of powe ciyw: imz c/t19 *rvsm3a99eir?

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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 d m66kcno:; * krsge.scurrent when connected to 120 volts. If the price of elect:m;kkc6segr6o* .sndricity 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 )l.8wlqh n* txit cost to keep a 100W lightbulb lit continuously for 1 year at a x ).*h8nwtllqrate 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 thrg29b l*pj ikd5uq 5me4ough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents thel25* m dipgk ub495jqe 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 50 f c/ts8;:lrv3a4gvcn0 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 can lg:va8/43 ;nrcvtf csbe 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 cir zgn qm-j*),3jz f55l i,gtxih e42diacuit as j )tae2hx-,jn* mg qzfiz,5dl4i3 g5ishown 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 connectezjo38 e0)ij(pqrdrw ;s82n e v0 nx+nvd to four resistors to form a simple circuit as shown to the r0oej vej+ n i (r;nnzv3wp)qs2r88 x0dight.
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 3s12;g5 q9 oc8dy xjx5q))nqilxrcfdthree resistors are connected as shown. With thej;og 5xd93xc)2xdf1q ) q nc8sqryli5 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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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 ahi33y 6)8tar aguko(zf(wkf( nd three resistors are connected as shown. r( u3((yzg8f6koa atwi )f3hk 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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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 r 0-o 84pb/9wcopxk fvyesistors are connected as shown. With4w8oc fbk9p/ -pxoy0v 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 sh5 :2jwr gah ve7-ph.6emlk:k vown to the right, what is the equivalent resistance? Assume that all wires hk.7le2j mewpgr6 a vk-:h:5vare ideal, the battery 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 r;zup3igvs 6b7 ight with resistances 6 vs;up7ib3g z$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resisto; nvg 7 7fjgsyfv97u0urs connected in a combination series and parallel circuit to a voltage sos 9g0v7f7fugj7uvn y; urce.
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 vkr50 (0vi23epi cp,2rrpvb cidentical resistors connected in a combination series and parallel circuit to a voltag,rr 20 c pkpv 5i23vbc(r0ipvee 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 ()6enc rpsud) 8hd-gjr;,iom bulbs are identical. Which bulb will be the bri h6p-) n;dd(8 scjm)ogruie ,rghtest?


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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 switcha m/1pawkwn- ,v8pg0(2pnmj d and three resistors are connected as shown. Wit a/ng0,w-kpw2v p8m a1(mnjpdh 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 batte u. 0gh ;:0oy usq5qxxyxvu1w,ry, an ideal ammeter, a switch and three resistors are connectedxx0;y ou0g:uuq 5.qxw vy,1 sh 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 swk 6h7kuqe8 4 ;46ava bjyv)zwqitch and three resistors are connected as shown. With theaqkuk 4)6w8;vzv7 ebjyq a 6h4 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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