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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 metalo.c 4:q mtta,t) qr7rp resistor connected to the battery. Which one of the follo,tr mtqpa :tr)7.oc4qwing choices best describes the direction of electron 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 res(o9y1ju5 z poyw)wv70kqe5agistors are connected in parallel, the_________each resistor is the sa okj5owywe9uq1(5a) p 07yzgvme.

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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 lmp:p7nt*tfz*s+1 gb 8/qdx8p h;j pbrightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb / qfxpsp+p ;*zj r: hnt8b *t81mdpg7bremain 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 repl133aw ccswj48amz/ydt2 d.bg aced with LEDs. LED is the acronym for which one of the following choicesgt 8wja3dzy.231sa cd bmc/4 w?

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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 crossdqe .ye; ysaex 640/1qr)ddz9 tn tg;s-sectional area A. It is to be placed inxan) 6es;dryeze; 9 d 4dttq10gs /.qyto 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 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 thy zj/q6;g;0g2o xr ulze diameter and twice the length of I. If I has resistance R, II has resistoryx /u0;gzjq2 gz;l 6ance

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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 samec8ewco)p:s wxw0swj 0+dst- u9+xs 8a material but has twice the diameter and half the length of wire X. If wire X has a reswx 0c uw xopawejs:s8sst0d8 )+-+cw9istance 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 resistor has length L and ra 5wpx7zd9wkhdt3 p r/)dius r. This piece of material is then drawn so that it is a cylinder with new length 2L. Whdpw79pxk3th r d5 z/w)at 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 m3:1o7,90i ptr lyh yjsmhkb0z t6ep5a brighter light bulb. He decides to ppmthoz3 ei j y79y5h 00l:6krts,bm 1modify the filament. How should 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 cylindraq(2 :sureh; 0upu+lnical resistors are made of the same material. The length and radius ofaupe (s:lqnr;u+ 2 uh0 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 6.lgli*o5qyvzsm+j 4w) :oskto 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 tvz: 6q*5).jsi+ms g4o kolwlyo 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 0:c*aoc)lk-wc6 mwkd(l fx3a has internal resistance 10.0 kW and the -xkc foc 6a :wkllw amc0*(d)3ammeter 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. Thu; pa9y.5gkwc wt-q5p.xzg)we three bulbs 1, 2, and 3 - represented as;xcp9. 5qa g yguz5k wt)pww.- 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 in a3 neiz t8*wf)mll three resistors is equal, which of the following statements muz3 tfe8) nwim*st 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 sim9ig/8m y0h ok9df3wom ple electric circuit composed of 5 identical light bulbs and 2 flashlight cellswk0oo3d mgym899hi/f . 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 the simple c)rh9v v0p0pcfircuit shown where resistors R1, R2 and R3 av0) p90 vrcfphre 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 battery. Bulb X is brw6(b:b ))oyy ,wwi3/uwr i 7ldqjct s+ighter 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 choice)t wwwyiy(,l+ /sjb7qo )dir6:3wb ucs 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 wdq 0*wsyu/u;8x kfc o+ill pass through the identified resistor in 5 seconds once the circuit was clow +/u0; k* ydsf8oxcqused?


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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 following simple ci3g+ x3wrjdl ;crcuit have the same resistance, which would diss3j+xlg; 3dcwr ipate 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 circuitvikw8vy 73: r3un +zhm diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supplzhrwm 3vn :83vi+yku7 y 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 R3w75rjjfh ug*;uj* kl3 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 6.0 W3h;uwr5jj *ug* k7lfj 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 paranpw0gfpu7 ; +tllel to a battery. Sup+putfgpwn70 ; pose 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 vr inxoc w;y8tiq6 )jj,et/ l+1olts. What is the maximum value of the current under these conditionsc,r y81x)wtjt; 6l/ j+qeonii?

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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 resistancelhz/)b9nw0rzuuh8- y3v5y go of a 60 watt lightbulb designed to operate at 120 voh h/n o-u9rg8bl05y) z3wvzyults?

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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 throuv/+pi la +,yhngh a 4 ohm resistor that is dissipating 36 watts of powl/a+ip vy ,nh+er?

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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 used0famcf /)c1wd7y( g2zmn2cw b to press clothes is marked "120 volt, 600 watt.” In n()bzwm f 2nda 1m07c/cgyw2fcormal 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 resistancembd/k y -8w:0yec3jpfzky;.ps could NOT be produced by a circuit containing only three y:ek jfbkp dc m83-pw. /yy0z;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 threeqg7a. 6ru3d qc 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be p 7d6u3g.rcqa qroduced 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 eqs /6o006lptz0 rxlidifferent values can be connected together in different configurations. If all three resistorseqol 0/66zixrpt 0 0ls are used in a circuit, 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 reseh5 r:r2vzjj )y8kor ,istor is connected 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 battery? Assume the internal resistance of the battery is5jo:j)re 8 ,vzr2khr y 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 resis*axhl6 ev)* xt.n-,jetn8cd+p d to)ntance R1 and R2, are connected in parallel, the equivalent resistance p javtn toxde)*.6nh, xnc8l+t-d)* eof 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 dbwqrs 0d+ adj n4wg49,esigned such that 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 qnsw9 rdd4 40b,j wg+awater 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 5 9tb3rl6o8s8p6bjrdhl9 f et flows through a 4 ohm resistor that is dissipating 36 watts of p9 jsll 9p3tbr tob8685eh6drfower?

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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 .ym2k01qu h98j xjeso.ys ;uxof current when connected to 120 volts.u 0mjxuoq2 y.; hj e8kxss9y.1 If the price 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 much would it cost to keew 4 56d: cvr:m2qg5aknf1unzep a 100W lightbulb lit continuously for 1 6m4g 5uqan2ew:krfcd: z 5v1 nyear 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 lightbulb results in a power bsu2m vf/qy 48d() qnfof 24.0 W associated with the bulun)ffqmy s( 8qd/v2 b4b. 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 a9q. cokib4 ;3*q j)zmkbe )f71menxq u computer rated at 500 watts in a 120 V circujf kq e; 31x 4)bqnm.*uk7iq e)mcbz9oit. 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 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 c/ zu2)h63eglhji. l dvircuit as shown2dehjh3 g6z )ilv l/u. 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 resism-upi c2pgx b2l, x69mtors to form a simple circuit as shown to the rightbcg-9p26xu xm 2i p,ml.
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 are con)f69t odir((z (o gt t/;*ttwbpik/w m:f*xyrnected as shown. With the switch ope:/gfw6t r(z;fb *(wxryo( o9ipdm/t)*tttikn 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 ammcclu*tm4de 5y (y+7t reter, a switch and three resistors are connected as shown. With the switch open as shown7ctyct lrue5+m*d(4 y 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 resistors a)fzz b9ng6w 80 3m4bnlbq rqd*re connected as shown. With the switch openbql0zg w493 b nrn8)dz*mbf6q 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 ot8wm-m oaw.n s5 +*unright, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resion+ua mtn.-*m ow85ws stors 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 ofhqfz 6aj 5u:w);xybz+ the circuit shown to the right with resistanc+;wxyazb5jh) fq :6z ues $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 conne4 iu;3 vrv qhmo1ww/dsq; ,-dpws3/u rcted in a combination series and parallel circuit to ;r/ qssvw;whi ,quur/1dm3-vo4dp3w 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.f4j/vt o uix3r8qwu+ connected in a combination series and parallel cirvqr.fw x/i 4o3+j8tuucuit 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 ql *ycf4e8,lmdiagram, all of the bulbs are identical. Which bulb will be *, lqfec8ym 4lthe 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 ideal ammeter, a switch atk*x+s 9md h;zfai0e- nd three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes hd9ixsm k*tf-0az+e;.
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 th84py,cy7q twaree resistors are connected as shown. With twt7q y4p, a8cyhe 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 amieu5pt21o8i qmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram t i2eu5o81ipqthe ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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