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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 resistordn/q fw(6 e8pm2,b cio connected to the battery. Which one of the following choices best describes the direction of e82cwd, e(b6oq/npfm i lectron 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 parallelpr:hy)cdrbh )4vn58 s, the_________each resistc yrp)shvh r5:n )d4b8or 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 lightbulb causes the filamea da*p 9lfyc 7a.y9)f*fe( zqvh x99ggnt to become white hot, whx99.7ly* ffq9 g(faay* zdv9 ca)ghp eile 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. 6yk-a g5-(vdvo 7l9cw p4 qogdLED is the acronym for whichklw9 4 5-vvpoagyo(-7qgd cd6 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 r:yqy5ytq03 djesistor has length L and cross-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 1/2 L. What is the ratio of the new resistivity to the old resistivity of the cylindri:qqyt35d0 yjycal 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 0qc*ldr v n b,p8c9u.yof the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resiqvc,0 rdu*8.yp bnc l9stance

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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 has twice the dum w1dt7 bla6 .yeg2( 4xuufs+iameter and half the length of wiu fb x+61 7sdewugm ty.(a4u2lre X. If 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 resistor has len)1r grqx*j 2hrgth 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 rrjh) r r1*gxq2esistance 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 aj( / 5i o -v3eae2rpgn,rvunt8 brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in orde8i-uvrj(n 5entgrv,a 2/ poe3 r 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 resistojnuhzckl h4+m:- 1f vot.o88 irs are made of the same material. The length and radius of eav8hz+1u. f8o m4:l- htioc njkch 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 conneviv e ):xxou::cted to a battery in the following way: “Two res) u :v:oxixve:istors 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 accomv4xh 7auyt . r9i80wgt 6zk57l1i ; myqqppt7rpanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance h p vaktq1z7 0riqw6;i. ty4 yu7t75xgl9mr8p25.0 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 *wt7v0tkkw+x85gder dfl 91zto the right. The three bulbs 1, 2, and 3 - represented as resistors in thez0e*tvd+87 d g5xrkkwftw91l 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 t/5xi9rrlwuf+xs us* p2 ; ie0z :igb1phe current in all three resistors is equal, whi5*0pu irix /1r 2ex;:bzw fpusg+ils9ch 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 electric circuit composed vn56uq;8+* zdvtly aw of 5 identical light bulbs and 2 flashlight cells. Which bulbt5+v6 yl uw8zd q;van* (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 statrsh mw;b8v g5m,u6ih*1z f hi+ements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are hzhv if 81*mwmhbiu 6;5gs+r, 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. Bj 2t6(wg.r1jl8,hd vsns cz :julb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connec 8.s ,2vj: z1lshcjjdg( wnt6rted 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 relewo2ll *p+wthd.gck4w1/8 n,9 s )rwhogn9dsistor in 5 secondtdlo1e*wonn.kw+l g wclhd)wg9ph2r 9 s8,4/s 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 following simple ci8uj:(v, ax wyy*+ ysjcrcuit have the same resistan*x : jyay, (c+sujyvw8ce, which would dissipate 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 accompanld:gyj*g+h ;zying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V?:jld* gz h+y;g


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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 bac+am-fv l3 -)p;j rqoettery. Suppose R1 carries a current o-v;fre)l c+aj-qp o3m f 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 different resistors R1, R2 andR3 are connected in paraln /j,,ciwzf m;lel to a battery. Supzjn, ,w; f/cmipose 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 127mdoqmb0a* 4 s0 volts. What is the maximum value of the current under740m*dao msbq 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 resistae cz4iz:7- pwgnce of a 60 watt lightbulb designed to operate at 120 vol g7iz4wcep- z:ts?

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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 flowsp7-sv 5edj / *u7qnytr tj)orfs54t) y through a 4 ohm resistor that is dissipating 36 watts of po7j5 y yrdqv)jos /*nts47re5p-)uttf wer?

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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 use7s xir g*dy278ita r2a3hs p2fd to press clothes is marked "120 volt, 600 watt.” In normal use, the x328apg 2frrai2*thyd7ss i7current 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 resistaj99yv0iiynarzoo1 v 7:2 ba:onces could NOT be produced by a circuit containing only three identical 6Ω resirz9y7901bv 2:oij aoay: ivon stors?

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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)j;+ rp2id x w,liox2 iudo+7x the following equivalent resistances72xo)ipo + ;lxx+2jdir,diuw 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 connect(w0 wr i(g1 hudrj00dded together in different configuratjh0 wd (d(1gw0dr iur0ions. If all three resistors 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 resistor is connected to a battery, a total power P 4n2e7tsa u.oq 04mr9qj .i zkeis dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using theqqsztna447 .0 u9oem2kei.rj 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 parall(0sl2rj* npi0uw + wdn1 mr7spel, the equivalendp7+j wns mwur n0sip2r*l 10(t resistance of 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 designed such that it has a resistantgp k818et63hbdb u )bce of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to war6 dbu3g8be8kh ) p1tbtm 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 ohm resistor that is25jesz .)h esp dissipating 36 wattjez5 h2)ess. ps of power?

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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 current when connected to 12o.v jy5en,w)qv*o z9j 0 volts. If the price of elect*ooj.9wz ej,nyv5) qv ricity 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 lightitfh98 zr5s:e ck6+l3 h)qsmtbulb lit continuously for 1 year at a +6)i93s : 8 mcrhztthfe5l qksrate 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 po8+urqo4r xk2l/y poh ()uay0pwer of 24.0 W associated with the bulb. Which one of the following choi(lhyr8p u ku /aqo0r+yox24p )ces 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 hphht i)h +-iww1 th4*owns a computer rated at 500 watts in a 120 V circwhiht-hh 4)twi+*1p h uit. 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 qg1c )ikua8dlqh z.t)w;w/c2l ;y7vyto form a simple circuit as shown wlglqz yc8 1.u7d/)h;k)tc vwa iq2y;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 ck8/e;ogux eu/ onnected to four resistors to form a simple circuit as shown to the ex ku;u/o/e 8gright.
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 ideoujn/k8 3 du 9sytu g+o,ae/e: aoz3(ual ammeter, a switch and three resistors are connected as showoo+uan,3sezyu tj9 a8gdu:u( /k /e3 on. 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 batterbjx8yy 6 ldwf/e; stt01.( mppy, an ideal ammeter, a switch and three resistors are connected /wtt16lj;(ep f y. 8bpm x0ydsas 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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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 sww y3kanqfb/q,yd3/x; itch and three resistors are connected as shown. With the,/qby 3 wk 3/a;ydnxqf 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 equivalent re, myhy rfkym w9dqn28-)sp:,usistance? Assume that all wires are ideal, the battery has no internal resistance, and f9-y, hn)swq m m2kyr8u:d,ypall 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 resi;y)ygx0 .1ahzqaf 0mestance of the circuit shown to the right with resistanyqf)ya1. x 0;ghma z0eces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connected in a combin.mp-td kk i,a0ation series and parallel circuit to a voltage source.p,.iatk -mkd0
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 cop9 jx v3cs t kaa)c20-/fjq5dsmbination series ajfap3 j )xck sc0a2v9dqt5-/snd 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 buh7(w4;+nz:o 3 kc2 siab sfdg m-gwpr2lbs are identical. Which bulb will be the brrb7:p4i f(modwghw2-;s +sakzg nc2 3ightest?


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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 batt6sr1 p -eh lfe,s0sl+zery, an ideal ammeter, a switch and three resistors are connected as shown. With the swss p0lhzfs+r1e,-6 e litch 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 battery, an ideal ammeter, a switch and three resistorho5yfmn*w 9,5cbv hu-s are connected as shown. With the switch op *c,ounh5w -fb59mvyhen as shown in the diagram the ammeter reads 2.0 amperes.
With the switch open, what must be the voltage supplied by the battery?


参考答案:    
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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, +c1gw w ooy*98e wjyl/an ideal ammeter, a switch and three resistors are connected as shown. With lyo1 +9e w/j*gwoywc8 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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