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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 circuitb8 -kcnj (2 rqd1u1:a 0azxpub shown, an 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 field through the interior o-dquab( bca2 rkn0 81:j zxp1uf 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________x rhb2, z20ji2hwlh dl8on58v_each resistor is the sd h5zl jov,lnh8b8 x2h 20wir2ame.

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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 cau-a uq1kute-r2 uy 3:ckses the filament to become white ho --y ek:ukuq2au1rt3c t, 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 L*ei6q2 bmv(5/-j ydkukco+z wEDs. LED is the ai/*k yud(-ozv2m 6kb5qc ew+ jcronym for 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 length L and byh /ci bg7m,6i 84-e9ag,fgd jhf .epcross-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 1f9-eb gi, gcj7b4g6fp. idye m, hha/8/2 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 the g aali)5k6cb(5e 2g(peen sm/ diameter and twice the length oemce(gs5ea5 bn)/6gk 2lai( p f 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 material but hq : hne4 .siv5rn.hkq.as twice the diameter and half the length of wire X. If wire X has a resistance of R thekq.nn. h4r5:sh .i vqen 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 resistor has lequkl8t 4h0-* s+imvy bvu nx ++fldk3/ngth 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 resistance of this material because of this pryk vvl+ 3 u+x0q-lf tkn/buihs+*d48mocess?

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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 Edisowqg8 jbi+* rx,n wants to 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 lightbulbgqi x,bw+8*jr 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 cylindrical07/n3utcu +1owbh h jr resistors are made of the same material. The length and radius ofw0un3btjc7o + h /1hru 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 connected to a battery i;:d9:z l4x,zf lpx:ski(hadgn the following wayl dagih x:(:xsd:fl4z 9p;zk, : “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 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 co k 6cqxw*2l fz9g4p+j8+r 6g grahn0jircuit diagram has internal resistance 10.0k *fnh grz4 0+g66j xa82wcgroqj9pl + kW and the ammeter 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 thfu9b)*0qs sk de right. The three bulbs 1, 2, and 3 - represented as resistors in the dis*s)k f0u dqb9agram
- 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 in al z1bfxav +cmrp2:;e+n(hpgk (l three resistors is equal, which of the following statements musamrz1(gvbx; n :phk f(p++ce2 t 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 5 im*5,4ad hp1 fbibcg (tdentical light bul4cp gbf,5(i1bha dm *tbs 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 following statementnjn. 4/jl;y- ud6/,, lhu, ay5ammgkobsq, mts is NOT true concerning the simple circuit shown where resistors R1, R2 agsly6o,kn-yh/m ,5dba, ;l4,t nuj. q auj/ mmnd 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 in series to a babe 1um2p cp5: wip4(gk(r q9)b rlwx5bttery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY a1 gw4)ir b(q5m9:re25pclb(kp wbxup re 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 owc5 gj+ )smih3t;jyz kmfvm+f1),1p in 5 seconds once the circuit was clo;j,wkmmiy3f t5fjsh )c+1o )mgv z+p1sed?


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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 resistd .;s s z.ujn v-g0/m8+d*nldyr +zsjcors in the following simple circuit have the same resistance, which would dissipate the greatest power?/s-zj.gd d;.md +cz 8sr *n l+ynvsuj0


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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 ci 0bs (frt7*.w1mt t4mxqvl a4crcuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is themm 4c4v7s*1wa qxb.(t r0lftt 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 con6ztf1a ;ao2xn nected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resztn ;6fao1ax2 istance 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 connected in parallel to a vexf 2idau/6v-e(c1y battery. Suppose R1 has 2V across it, R2 = ced-6 fviav(1 x u2ye/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 volts.x-e )ao m:o3-lit4v bk What is the maximum vatl-4b-ao)k iv3e:oxmlue of 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 resistance of a 67;e xiy0 cxlxu2c*hx8 0 watt lightbulb designed to operate at 120 voc7y8 hcx0ue i2x;xxl* lts?

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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 4pa 2f *5(n yq9qzbfi-7nol th9 ohm resistor that is dissipating 36 waf7- pf*y5i9 qhq2 anlnz( 9otbtts 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 watt.xvfm5+ y;k+)yp db ::m5yri lc” In normal use, xf5;mbmridkpvyy5c+ l : +)y: 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 cot.a7ydyl ip.+uld NOT be produced by a circuit containing only three identical 7l.iy. atdp+y 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 resistors. Which of the foro/ b*2n9 dyue v/f4bigezb87llowing equivalent resistances CANNOT be produced using all three resistorsrfg9/ dzebi u b2*eyo8n/74bv ?

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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 a* alzes7t(rps 348 oqqzo;k9)gjy1n values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be prod4gsz(qno1 s; 9tkp z8o 7yr3a)jle q*auced?

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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 awz5chnk - i 8;ysa-z9total power P is dissipated in the circuit. How much totalykc;5wz8 9h-zaias n- 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:t i-)w zszz2bx47j7eefb xq3 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of th7)e3bzz2zxs e4tjb - x:7fiwqe 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 thatn 5(l)(e lsun xnrwxu,b. cu3,v50xol it has 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 of water froxcs l)((lx5bnuu n ,uw3e r0o,. n5xvlm $15^{\circ}C$ 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 r4 hdd kkv0he1 wcfy 5.gasqgymm(f)l8 m3. 76is dissipating 36 watts of powerv6 m c dg7 d3h4m1e. lf80.yshfa5)kmgwk(qyr?

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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 jiq72y77 q4vaou z0as 13 amperes of current when connected to 120 volts. If the price of electricity is27a0uoziv sjaq4 7y 7q $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 o 2rpf5(+m.cq btwkz snt:*x+how much would it cost to keep a 100W lightbulb lit continuously for 1 year at a rate of (+2+. s *wcnkzp5fmt: xtroqb $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 ofot;fsb*h kf12m 3pbl 5 24.0 W associated with the bulb.5 l sofbhtm3 1k*bp;f2 Which one of the following choices 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 of six owns a computer rated at 500 watts in a h ld1k18,e gcp*mp:uzy/3gaw 120 V circuit. If all computers are plugged iwdhgpk1 */1 acp8ug3lm ,ey:znto 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 connected to four resisto,mjvq3ebppwv;/d g9 j+ u4ir9 rs to form a simple circuit as shown to , md 49v i9rw3pgb;jpqvue+/j 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 resisio a 3ne fl;,5/ecqdpml3 .ok*tors to form a simple circuit as shown to the righ;3la feqo p 35ie*c onm/,.dklt.
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 battezn1t dmb, 4j:vry, an ideal ammeter, a switch and three resistors are connected as shv,:jb4n mt z1down. 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal batteuigds 5-e.r ncf)v 74jry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as showneu g-.fs 5i d4cnv)jr7 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 x g+yp)ly8upa 18w*ndswitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. 8 *+wugn)8 pax1p ydyl
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 resistance? u xkyjl+ifi9-1:re6 ody0 kv/ Assume that all wires are ideal, the battery has no internal resistance, and all three resistors havefuvx/koiy6 ryk:9-d+l j 1e i0 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 thbd rwr6s8aj):u;q ;h xdd )q2be circuit shown to the right with resistances 8drsq)ur2 ; bw a6h:x)djqdb;$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 i(ajwi:j tr: +3p; yk4rw*xpm+*ereky dentical resistors connected in a combination s jy w* y(kjir*::+k r+ew;xematp3pr4eries 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 1c+rjls p3.e*2 f0kbrrnygt 5 resistors connected in a combination series and parallel circuig+jr 3nsy rf 2.* l501eprbcktt 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 of the bulbs are identich+ 3gdhgh8 irn(1 t8i7- hyoteuh1, lwal. Which bulb will be th,itgldoy3e 1 g nr8w- t7(i81 h+hhhuhe 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 b/wz 6ne(s(v,f yozj8 ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagy ,szwov6 j e(fnbz(8/ram 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 batteryh0zu5c+ 9n8 3*otrrayk qn *nc, an ideal ammeter, a switch and three resistors are connected as shown. With 8rnaorn5k 9uc+cqy nh*3t z0* 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 resistors are/ j,stgj9kbv; connbjg, ;9 tsvjk/ected as shown. 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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