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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 s3q armd3(5i sds wu+a9hown, 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 thea9+a3q 5u3i d dmrs(sw 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_______0-hfq jk *kkix9dp/ 5n__each resistor kx hjq5p-nk *k9if0/d is 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 ligh ,z547e(zouommo a+jt tbulb causes the filament to become white hot, while the larmmjooezu ,+ao7(4 t5zger 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 h0+un 6tn0jrosl3 u)b/2*i-ivqz j ng )1mgtrj ousehold lights are being replaced with LEDs. LED is the acronym for )nlti0 gnq jzus6 tvrm 2*)3+goi / brj1-unj0which 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 h kwtk/ztr4 3ffp;tk81v vy9 :mas length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in half zmvy8k;pv / w91tk 4t:3trfkfso 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 the dh 5 ).gs-l cz+ ;pouemdp56xvwiameter and twice the length of I. If I has resicdpv- mx5 pz5w)l;ose .+guh 6stance 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 ofm;wp6p9 bc ln9 the same material but has twice the diameter and half the length of wire X. pnw; lc96 pmb9If wire X has a resistance of R then 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 r6l(f /a2/neqc4n) nl gc1ubng* v m5jsesistor has length 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 th 4 c(mqscenn*g u2g//nal6)jn15 flbvis 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 toyj (b al4qe16os 4/fdu make a brighter light bulb. He decides to modify the filament. How sh4y 1/6flqes jo4ubd(a ould the filament 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 materiab ;fzmhc,ttmxtil1nixd -496 kk 2i.0l. The length and radius of each resistor ikhi9t4 ;b.2dkm0ic6lix z nxm ,ttf-1s:
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 ol 1b6kjdo0a joj u-b5a)n,a5v f resistance R, are connected 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 aoknav55bb )ua0 -ljd,jj6o1 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 habg-ms -y.xb.z ,1xyl q9tbum )s internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.-x.bby) ,. mly gqsb1-m x9tuz00 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 rm )7q77b(ppqczh8 nb-kn* jp yight. The three bulbs 1, 2, and 3 - represented as resistors in the diagram 7 qy7k pnqmbh(c87p )*pz-n bj
- 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 simppl( ii 8nxw1o4le electrical circuit at the right. If the current in all three resistors is equ(po1xn4liiw 8 al, 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 elec mrsdo lh,b,ejg 4*q3(tric circuit composed of 5 identical light bu*, ms4qeb(3 o,hrl jdglbs 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 statements is NOT true concerning tiljv .vqp6 1/3 acp:kdhe simple circuit shown where resistors R1, R2 and R3 are have .cjav6pvpd3kqi : /l1equal 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 and5)in5 blvm v /4wjq l6r ya/9e*2i 31iecdcrtnY are connected 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 other to the same battery, which on39lnl1id)ic/bemw e qi2 /c*jrv ravn45 t5y6 e 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 coulombs8a n9fhrvhu( 7m 2pm/ku16vwb will pass through the identified resistor in 5 seconds oh afbu69vukwn12/p r(v7 h8mmnce 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 k vj 6 rjpe2;gjy2(lv3c3v8dpfollowing simple circuit have the same resistance, which would j2lvpkd(8v6j y3g j;r pe3c2vdissipate 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 through the 6.0 Ω resic 4-rs 8czy.hrstor is 1.0 A. What is-ry czhs4c.8r 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, and R3 are c020jsq . zmvb/.ixzk 3j3dlhv onnected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0b j0kj.ivvld zmsh032x3/.zq 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 pa0sry s .81mw-wv qq9srrallel to a battery. Suppos 8y mr0.sw1 qwqvsr-s9e R1 has 2V 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 volts. Whatw, x)xqw;-v;8vyed ea is the maximum value 8yv ;xqvea);ew,dw-x 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 resistansmen4jx1:4 (r3vhj fc2iu i, pce of a 60 watt lightbulb designed to operate at 120 vov1: r 4enx4pjjum3 cf(2i ish,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 4 ohm resi ujqck+-v2b w:stor that is dissipating 36 watts owuqc2k- b:+vj f 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 clo lfy/ lzk* x9+oamw5hy zop619thes is marked "120 volt, 600 watt.” In normal use, the current in it15 9l /ykzoh*wal 9o mfz+x6py 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 prodg0ulo /v;7vujf qau 14jm :/ryuced by a circuit containing only three identical 6Ω 0 1ruvofl/u:yjjv7 gaq/ 4 ;muresistors?

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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. Whnmpm3zdjl q 86it-/i3ich of the following equivalent resistati6nqzlp8j/-i m d33mnces 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 in differ: ht yr9at7 ..ho/djjeent configurations. If all three resistors are used in a circuit, how many different values oa. / jj ttd:e7.hh9oryf 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( ehs:5hmzx g( battery, a total power P is dissx( 5(sze hm:ghipated 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.

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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 cixp0myuej+ 87 onnected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statementsmi 8p+eyuj0 7x 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 r rn1k31g ,dthaesistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 311r kdnth,ag0.45 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 rsyynovsvx2: g*w n* :1esistor that is dissipating 36 watts of powyvsx: n 2o:ny 1gs*wv*er?

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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 ampery0ohei m/ctbq7;8tm r6.7tdz es of current when connected to 120 volts. If the pricet/6bmi0;.r dht 8e qy77cmzto of electricity 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 muchpe;*u -d /tzhq would it cost to keep a 100W lightbulb lit continuously for 1 yearhz* ;u t-eq/pd 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 lightbu:hum05tuxmwa j*l d 6k 20i ubo32;kqjlb results in a power of 24.0 W associated with the bulb. Which one of the foll:ok;22 6 5w*k id mjj3ulq0uahum t0xbowing 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 com 6:egja 2 prh6zlhf8,+m q,qbzputer rated at 500 watts in a 120 V circuit. If all computers are gq 6:p+ qh,zh8bm z 6ejf,r2laplugged into 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 resistors to form a simple circu4y6e8gf l9aqg it as show lge84y 9aqf6gn 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 four r2g fxo;a 9*fks18hudb nzr3sp d5gx02esistors to form a simple circuit as shown to ths bk8g02sdrf*5f xzda o3hux21p9 g;ne 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 resistorsmk 42m4zv be6)a*xhv x are connected as shown. With the s bamv4x2 )*h4vx6k mezwitch 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 i6as+su xk ;mr+(4k+cw/e lsfqdeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagrlkeskrcs/++ fxq(64u +wa ms;am 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 resistors are conn2z*/ ; / dqieqsw0-tca itjb2oected as shooi /; ttd2s 0/qbazwcq-e*i2jwn. 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 eqx/qmw qoz /5.fn d8eor /jn92g5x4a fe )(grknuivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, an95xq4/woqgfdanx2o zr n( g8/f ne)mre/. 5jkd 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 right witj-w01 lyi 5/n hhuzppwepzt,*,o ; )okh resistanp0lt )popy/*u1;,zi w nw-ejh,z5kh oces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resiogr;4e/)2/ qzm o)m ktw i6a)u.vhoibstors connected in a combination series and parallel circuit to a voltage /i 6tor .4i)um e bh/mzaqgo2;))ovwksource.
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 combinatz2ji,jjzy52z ion series and parallel circuit to a vi52z z jjjyz,2oltage 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 vsdvmv)*/brpg q1 1p8 diagram, all of the bulbs are identical. Which bulb will be the brig1 gps)1v*/dqpv8 vmbrhtest?


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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 resnc1o7t tuzc-i u-3,ce istors are connected as shown. With the switch open as show ztc71nc 3otc-iuue-, n 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 resistors aren2 n m+ cf.;f2yggk8xa8)uaav connected as shown. With the switch open as shown in the diagram the ammeter re.ax yg v+2ag)f8k;2a ufc8nnmads 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, a-w/;h ge)mywpll ( w2cn ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter r/-lwc pehwyl2 (; )mwgeads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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