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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 currenrypf *) vrhgjl q,s *t8r1;3fzt exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of*hffqrpr z,*3j)8l ;1tsvrg y 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 resistors ar7now,ihg:/.po fo;0jw o(ryq e connected in parallel, the_________each resistor is the .,o7 ; piorjhf0:w/ onwoqy(gsame.

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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 thralwwcas, j)a8 xa 81y1)p r1mfough the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becaxr1 a aaw)88)cy 1jp1fsamwl ,use

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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 house rn02ih*h0fnq 0 h4cgehold lights are being replaced with LEDs. LED is the acronym for which oinhge r*n0 24 q00hhfcne 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 cross-sectg/6xo m9 3tt8ynv(ezw ional 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 cylindrical /t8g6 9mn x3ztvwe(yoresistor?

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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 d;9 .3 e)rbqnfxhw;suxiameter and twice the length of I. If I has resistance R, II has resistanb ;snu)e9q x rh3x.f;wce

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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 diac8oob:ellaa0evz 86 kt:8 qbazd/ 6 6gmeter and half the length of wire X. If wire X has a resistance of R then wbg6ve: o q0tcz8 e8dk6/:a a6aoll8b zire 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 radiusbglhqves(8g)zr9 1 , c 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 ma gvlq b(,cg)e18srh z9terial 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 y* 7m lo;ai*ie7xmk;b wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightb mxkil*y;7*b iao7 em;ulb 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 /ac. sqh6j 5u+ xcigv4ur (atd4,2d ycmade of the same material. The length and radius of each resicd(h. 56sud2,qriu4yav cx4+cag j/t stor 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 batt ,hdkq6if90pon3lga9 l k*9kxery 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 to a fourth resistik0kpl3d*6lok qfa ,9gxh n9 9or.” 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 has internal resis6q.c rp x1 +nao/jnz4ftance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The vol.n46pnjo xa 1+/f zcqrtmeter 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 circuip pxmi/hy7 u(+t shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagrami 7hy+xmpup/ (
- 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 rightfbj1lswv.gb 3/// um a. If the current in all three resistors is equal, which of the following statements must be tru3bmabf jl w/ v1g//s.ue?


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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 ri gsccms:9 6a(.hszeq )ght represents a simple electric circuit composed of 5 identical light bulbhzsg cm(sqae.s6 )9c :s 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;pq 8k/gul . qf.xjn)j concerning the simple circuit shown where resistors R1, R2 and R3 aqkfu/j) ;.l.p qnj8 xgre 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 arem ;+.qg*mp9eyyx3ks ptp u h;9cj e8o* 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 one of the following choices best represents *3 yme qj;xh;pmg98u+ pseo9 yk .tp*cwhat 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 identifbrutv3 7ze c*(y1 /jw,g +ddeon;trt3ied resistor in 5 seconds once the cie3b+e3uyt*ro vt, dz7tdr;/gnc1jw( rcuit 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 6 + xackl /gk5xatv/eme6i/ 8p resistors in the following simple circuit have the same resistance, which would d/eikxglc/ 86eka 6+v5p /xmatissipate 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, th,md wk5* zdlut k: 233yg3rjtke current through the 6.0 Ω resistor is 1.0 A. What is the power supp5, 3yr :2tlkm wddz3kjut 3k*gly 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 connes*y2 1p5wltzkt b1 ;:mp0ochfcted 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 W of power. What is whc y1tlbmz2o;0pp 51 k f*s:tthe 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 parall.o5wn /tojwby0g2 ,ib el to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the cun2/oyo w,wgb0.j 5itbrrent 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 1204.j z6frr9j 5y;nk ovm0 watts and 120 volts. What is the maximum value of the current under jr.6r4v zoj kf;ymn59 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 60jjk+b3m-ig5f watt lightbulb designed to operate at 120 vjk-m+ bi3j gf5olts?

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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 ohmuv bt;f6cc*( j -s(dm9efmm7r resistor that is dissipating 36 wattf vmsu6cmmd(9t-c;7j *fe(brs 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 wattkhk*uw . se-o,.” In normal use,ksho uewk.-,* 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 could NOT be 4o/+rt fs-t w4ntiw0u8mq.vz produced by a circuit containing only three idtz0w4. w-urq 4nsfot8tmiv /+entical 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. ouz4bzd s3ol( i- o,fyi ,y2q-Which of the following equivalent resistances CANNOT be produced using all three resisto-l, f, izbqido z o(y3uo2-4ysrs?

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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 different5q)i+;zy; hu9sxrpm x values can be connected together in different configuration;)x mh5ys ; uqzpi+r9xs. 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 batterv i5uv3 za0 d /od4pbny3(it0hv/rzb2y, a total power P is dissipated in the circuit. How much total power is dissipated inzipv25z 0 33(o/btiddrya 0h/4vvu bn 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 resi76w4) xne/nuov 5+ i,glft ghqstors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is corr w,xh ugt/nli6+e7) nogfq4v5ect?

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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 z)6 s5vou-qflgz 2)q:tx a cw2that it has a resistance of 12Ω when operating at 120 volts. What is the minimum azgw2v:t6z qq)o cl5x2)u fs -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 43cuq +)fa(bwo ohm resistor that is dissipating 36 watts o)q+fuc3 woa(bf 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 120 vg i7qzp6 -,f4ja*tbu molts. If the price of elecf-ajmpg bqu47tz ,6*itricity 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 lit contin+wj 6 wosoj ;3ejv:yf5o- ydrqi/0qm3uously for 1 yejv jo+ qw:; dw6mqro3-e/fo3y5 ij 0syar 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 po+65ej+p ttax9inv ow5- +l qqower of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lig5+tq j5t-ep6xa + q inw+loo9vhtbulb?

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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 a :2opzt vtbcr.tjd4 .0t 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by 40p.tj v c:tdrbo2.zt 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 n/t 2wed3k+ 1/tj qhdgconnected to four resistors to form a simple circuit as nket2d /1gq w3/j+h tdshown 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 7e7t (dfxhq6o9s) 1woci xh y/resistors to form a simple circuit as shown to thesiywfo7xxh c7/od16 ht qe()9 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 2g e,: q2wf koz88obyhammeter, a switch and three resistors are connected as shown. With the switcoz28 o ,h kyegw:8fq2bh 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 switch and three resistors are conn (:5xwcyop;d s)dqtn86 . hnbcected as shown. With the switch open as shown in the diagram the ammeter reads o5psd( tqc xb6. yd)n:;8hwc n2.0 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 afd9/wer;ov +q33 n bipnd three resistors are connected as shown. With the switcw/perfi9dq o 3vn; +3bh 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 resistance? ,5p:dbj 4kntj;ba1xd Assume that all wiresdjxt,n 1 :bdp5k4aj;b are ideal, the battery 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 resistance of the circuit shown to the right with res7hk;x(y kft1u.9qz/wd v+ knh istances1/hyk(w xdh ; qtf9+.kvkn7u z $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 idw.z e.04*zj0ic rnqtaentical resistors connected in a combination series and parallel circuit to a va04.*wzt0zcjrqe. n ioltage 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 connected in a -b,teq6gn6k8(g soj n combination series and parallel ci6,6ksj-etbn ogq(ng 8rcuit 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 are0ox/d;w q); wbfl/gpz * dhl5b identical. Which bulb will be the5hx)p0d/w/ qdb;;bw *zglfol 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 k blxw+;kcf50o6vcv7prlpp:: a- o0yideal ammeter, a switch and three resistors are connected as shown. With thek xb7- p p6:vp0o5alovc:rf + cl0yw;k 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal amm-aaaun7ga .-5qcsg+nwd ,b)5:.szo eqbi 6p w eter, a switch and three resistors are connected as shown. With the switch open g:ns pa-dqza +nu,w ).75wa.b-b6ios q c5 egaas 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 switcb ni7l9.e/m6fac p.mjh and three resistors are connect a7m6/fb9. nepm.cijled 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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    总分:50分 及格:30分 时间:不限时
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