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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 exis.o:qpmkz (fd+mo);w q 4 movw6hn8c- ets in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resisto(km n4z oeqom qh)fw:vo+.;pd -c 6wm8r 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 ru,j4 wwe /) usa*d)1+pkkbjaresistors are connected in parallel, the_________each resistor is the sam)4jdewk1)*j+apawbk , s ur /ue.

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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 filamix v.p0f6m:ma ent wire of a lightbulb causes the filament to become whixvpi6fm.:a 0m te 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..eibp y3j e- zso30ap is the acronym for which one of the followin3e-0a eiby3p.s opzj. g 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-sectional area A. :,j(d.rl )kp f2usyvr 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 the old resistivity of the cylindric 2, dl )rrjvky:(ufsp.al 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 maden y6stry4gx,3syj-2v0 o ahd : of the same material. Wire II has twice the diy t y-j2dn:6sv hyx3 sr4a0o,gameter and twice 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 the sa:s 5maz fua,2zaax p3+me material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire + 53,pfa suza:ax2zamY 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 mn3*us5e o4ppq f0gec ,*bq f2eaterial is then drawn so t3 ep*b52pofq u 0f,ese*4n cqghat it is a cylinder with 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 to make a brighter light bulb. d333 6que:wergh v/(wbi7 uykHe decides to modify the filament. How should the filament of a lightbulb be mod gwq363v uyh e 73/uk(erbwdi:ified 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. The length andwpo:azypj0zeuq615+0 5mpot radius of each resistor isaowuyt10 pjzq5 p5pmo 6ze+:0 :
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 thn5a -qz.w4ni;npl oo)e 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 resistance of this arrangement of four res5op; qnnw-o4lin).zaistors?

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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 accompatk(hkpd17 .5+i)b rhcz5swzxnying circuit diagram has internal resistance 10.0 kW and the ammeter has inth7(1 rhk.)5s+wikbc tzpx 5dzernal 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 shownib(bp59 h9 i cr nsi0(v0da./ygu 1pzk to the right. The three bulbs 1, 2, and 3 - represented aspd .y/ i0g cib (h9kb(azs10i9 pr5vnu 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 electri/q/lp)ho , bto re;(mecal circuit at the right. If the current in all three resistors is equal, which of the following statem;,/)elmb/o( hpt orqe ents 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 5o l (ie7.yvgf 0mxtrv/f64uyrepresents a simple electric circuit composed of 5 identical light bulbs and o(y yf/6gm0f7 v uir5vxt. 4el2 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 conc7d wzzq(h6b3s0ebki3t5 f dp6. ql pd)erning the simple circuit shown where resistors R3 qbdd 0f6pd(3z qlb6)z.h5etiw ps 7k1, R2 and 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 z2g1 x9oj0nw rbattery. Bulb X is brijnzro0w9 1g2xghter 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 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 passofi -s v-2v,s 20gq8owlez pay;u-tj9 through the identified resistor in 5 seconds once gy9o-fsu2 lpw-;szoe2j, 8v0 ia - tqvthe 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 resmhu:fc/ x7xo2j1u7nu istors in the following simple circuit have the same resistance, which would dissipam17hocux7u:fu n j2/xte 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 + l-zg/hy tbi+/f1majia3+k f the 6.0 Ω resistor is 1.0 A. What is the power supply voltagibykztlffh1a+j +3g/a +/ - mie 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 battery. Supp7 notjc smd(iel*6 p9*(x2rkfwyq1 6a o* (lf 9jiascqe7wy 6 (t2dp1nomr6xk*se R1 carries a current of 2.0 A, R2 has a resistance 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 differen8mwh2 +to1dg.jl1 gi)xgnpcx 5.r6n nt resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in R3?x615gr i.d2+tmwxpco1lgg8n .j )hnn

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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. Whl hx j75w50davat is the maximum value of the current under these conditions?5ljvw5hx 0d7a

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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 resist ;d l9 yq55 -iruyvn75rxihw:zance of a 60 watt lightbulb designed to operate at 120 volts7d5l yhq5zrni-9uw iv; y5xr:?

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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 dissipatinqqytflsir3 ;uz::2w( g 36 watts of powerq ut2(: r isfwl3:yqz;?

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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 torfalut xzm63:;yh7yr*f5p/7 fvvy1 k press clothes is marked "120 volt, 600 watt.” In normal use, thy; :v/7az*yvf pfml f tx7 u5kr63hyr1e 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 resi34ddpbplkk+ ,u1 jl6d/his x5 stances could NOT be produced by a circuit containing only three identical 6Ω resistors?d lk/+biku6pxd 4hl35sj1, dp

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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 Ω11gh4yeed(7q cp*z oo resistors. Which of the following equivalent resistances CANNOT b1zdyocq4ho g1 *(p7 eee 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 differen0d5(ou8 +yica px*nq /gq 9ele6 mko-qt configurations. If all three resistors are used in a circui8x*ap+odo( im96eyc g ku qqn- e/50qlt, 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 connected tfjv0dt/k0j(tw/ n pfsh3+ no 5o a battery, a total power P is dissipated in the circuitj t/0ffvn(njow3+d/h 5 tpsk 0. 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 connected in paral*gq;h z8lor 5ajan - eox77)ealel, the equivalent resistance of the combination is 5Ω . Which of the foq8 or5en-x ;ozga* a lj7e7ah)llowing 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 is9u ;cn/ femmk(sqne+3 j:xoi1 designed such that it has a resistance of 12Ω when operating at 120 v;m eq:u/9e1 x 3(sifcomn+kjnolts. 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 through a 4 oh2/on u: qx+mb.fo/ pcrm resistor that is dissipating 36 watts of powe xc .mrqboou:fpn+/2/r?

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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 currp el8qk)9za+htzhp3 .ent when connected to 120 volts. If the price of ehl8zppe+tz)3a 9 .hqklectricity 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 keep a 100W lightbulb litq-7m:ko4o ./gpyq df px-q;ml continuo.y x ;f-ooldqmq m-p/:pqk 7g4usly 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 current of 4.0v;s 611 ,olcrenft8ea0 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 resistance of theal61svo 1 enrcft ;8,e 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 +.b 2v tub6 wzvlaknk8tift0 j,.x1so6g,1 n oof six owns a computer rated 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 can be operating at the samet2tf i,6.ntxvo06avls ok , gu1ztjwk+b8b 1n.ime?

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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 connectebzt zo5pe7c38 d to four resistors to form a simple circuit as shown to the right. 7 8 5zeczobtp3
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 battp/70klx8 sp teery is connected to four resistors to form a simple circuit as shown to the right.ktp/ e0 8pxl7s
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 afymqhf g)/5q kb);0w jnd three resistors are connected as shown. Wit) h;5 fgyfmb wqk0j/q)h 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 battery, an ideal ammeter, a swiggppf ;t2811 exu mv.ktch and three resistors are connected as shown. With the switch open as shown in the diagram the ammete 8f1ukg2.ppx;evgt 1 mr 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 c7 crdg:s).3br,u mb- )vx1no/: lvh ;gmcrhg gonnected as shown. With the switch open as shown in the:bso3 ug7r h x1g, dv) )mcrhng -lvm;grb:./c 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 resistanc lk*mnok 4f9v7obp-j-e? Assume that all wires are ideal, the battblk4k*ovf -7njopm- 9ery 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 r8uy0pw3lt os 6esistance of the circuit shown to the right with resiu38o0 py t6lwsstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 conns /-ax- n5thbm7sp0dnected in a combination seri5-/-ahtm0 bnp n7dsxses 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 showka)uxm,:kvbe*/xefulvt 1 )0 s five identical resistors connected in a combination series ank:ve0l t/*bv fu,)xmxak)eu 1d 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 of the bulbs are identical+blrq2 .+ ni (ty0 rtxg75 sf+fmt4pve. Which bulb will be the br+pfy(tsv.0lmfxn7i2tte5g4 q b+r r +ightest?


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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 resis .ci8b8vln/rw dp c82-kyg* wwtors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere- ircnyv gww/k8bw82lp .cd 8*s.
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 am4z+ yrhanb7,azfq;*o ie+3ba meter, a switch and three resistors are connected as shown. With the switch open as shown b73zb qhf a;4aiy+oraz* e,n+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 reb*wrp*1o(mcfk3 kewliq 3x* qh,l 02 csistors are connected as shlww*ir,fl3 (chp 2qq c3bok *k* 0x1emown. 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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    总分:50分 及格:30分 时间:不限时
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