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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 meta1 j- jfegh3o/89q( x 6pksyo6x:vxe dol resistor connected to the battery. Whio:/6o x h ej(x1ovf 6k9s3djq-eygpx8ch one of the following 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 resistors are conn t:44wr2qv;csi nhe8xdzk-n ;ected in parallel, the_________each resistor is the s8xc;rnq-i2 k;wdnhvze t : 44same.

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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 ilw jntv;2pwno.2gbewi0 v/-8cl l:( filament to become white hot, while the larger w8w-wlii 2nnwjvpt;2l0( gove/ lbc:.ires 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 tq,1d/s hdn4ox- e1z2 forscx5 0d l5lwith LEDs. LED is the acronym for whicr4,15- ld5lf 0h/os c12znsdq edtxxoh 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 :wb(ag+o / nzlresistor 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 tha+wlog/n:a (bz t 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 0tqi 6mz+w ol(twice the diameter and twice the leng60 t (oiqlwmz+th 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 same mater uv6+i(v1cgfrial but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistance of1uvci(v+6 gf r

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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 radiusv)f3ihfl2q4p r. This piece of material is then drawn so that it is a cylinder with new l f2p4h vfi)ql3ength 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. z*,dzuxd9b5p9t hms hr 971elHe decides to modify the filament.s9*1b9 ,p7mzxl9rduz5 h deth 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 cylindrical resistors are mad.v e .y.v2siwk i9zh2ce of the same material. The length and ..vcv9 h.iwyks ez22 iradius of 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 6v8eq 47cajf qhmb:9 hR, 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 resistors is connected in seriesjh c7b ema4f98qvq :6h 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 accompa3k-bo1odx3 u3 swzhs*nying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistan o*z3w1 su3 h-ks3dxboce 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. Thek0kk434t:xgcm dp1+hazu 3p v three bulbs 1, 2, and 3 - represented as reskhgd3cpt:0+4 4m kv p1k3xuazistors 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 t 5z(pddu 9e+3u04lvj anx+4sxp;ggwa he right. If the current in all three resistors is equal, which ofz e4;n(0 sx+4 w +gagdv3ux5dplj9upa 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 cir2z/4atd5:hs5df s o zwcuit composed of 5 identical light bulbs and 2 flashlight cells. Wd:2azwtd4 s 5fo 5s/zhhich 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 fo/q 4h2li(v uesllowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have 2s /h4ilq(euvequal 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 batte28chk2rmm92fb1 lz ygii(o, dd 0up3h ry. 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 theh01 mm3 2dh2ycd o,z8 g2 ui(9kirpflb 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 resisj uf .66l dxwp -p/vtw13otjdr(y*m3etor in 5- 6u/m(j3. lj*6pdpy1fe tx wdwrt o3v seconds 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 cir ubf,m/-mi* bgcuit have the same resistance, which would dissipate t-fmmib/* ,gbuhe 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 dc.tv nq2 2a.79v zhrkΩ resistor is 1.0 A. Whatc9v2 a.nz vhq7r2dkt. is 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 arw.c3-3r)jb u ,)l e mj8h6/bfalirws re connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resir8r-6/3wejj)ac)rmil h ,uwl bf s b3.stance 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 .u2) 3nca/dx-evtc udconnected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 - u/ ddeuc2 t.cnxav)3dissipates 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 vo m:pcn34zmd v9lts. What is the maximum value of the current under these conditicmnz94vdp : 3mons?

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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 60 waej4t:r eln 0. 6nzn :)k)hthigtt lightbulb designed to operate at 120 volts?in4 hz: e)e) gn 6rnlh.:tt0jk

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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 dissipatingvr.:.z. e gt:eicnb(fafg-, v :c uq/w 36 watts of :fbcg.wq zf gv( e/ r-a.v:neu, c.:tipower?

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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 clothbhf. em )j0f;hes is marked "120 volt, 600 watt.” In normal use, the mbhfj.f0h e);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 NOTg) 4 pdjn3i2u x2g6bix be produced by a circuit containing only three idg 6 bjdixixgu2)2 n43pentical 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 loc5 )8wm weo/ck/ tr( Ω resistors. Which of the following equivalent resistances CANNOT be produced using all thrcr8/(5l/ )wemk cwootee 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 cejod (*g(o9zswusc j:329cm tan be connected together in different configurations. If all threg(3o*w: su9jteso mcdzc j9(2 e 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 is dis2yw4w* us*zr .xp3lm esipated 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 int 3swery w* mlx*up2z4.ernal 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, arofb2xt 0v+umn yn42 q4a+/ ncoe connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances iy+qn4a /bvncofn4 ut om +2x02s 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 resik /m9k q:5pgp gokqua7 jgmd/4l.54bdstance of 12Ω when operating at 120 volts. What is the minimum amount of time thaa9/ du4d:.gp 5bjkg7q4/5og klm km pqt 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 f6 s+too* hlpr3hwz ix8p4* y,o6la:qulows through a 4 ohm resistor that is dissipating 36 watts of poweyo *loa h*r 6hqot pl3p8,w6i4:sxz u+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 :.t0fqt d7 npfof current when connected to 120 volts. If the 0 n 7qtftdf:.pprice 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 8 mokg -1v *lu*kjjcp6a9nnp. to keep a 100W lightbulb lit continuously for 1 year at a rate of ukvka1 j*lp j*9op86 ng.mc n-$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 of ky+m; k7pfan624.0 W associated with the;km pk+yna f67 bulb. 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 oud5 m01m .gsobf six owns a computer rated at 500 watts in a 120 V circuit. If all computo.m1gb m sd5u0ers 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 sim 2puk/ /u-glp3vgez.aple circuit as shown to the righe p zgl /2upuk3vga/-.t.
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 batt2z6vnn4bt *; ygbz cn/k)4dog ery is connected to four resistors to form a simple circuit as shown to the rig* c)nyt nbgd nb;v42ogk6z/ z4ht.
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 ideaym+: )im s3(ujzfywv1 l ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram: uy1vj ismfyz(w)3+ m 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 thresngt1 oa14da6e resistors are connected as showa1ot1n4d a s6gn. 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 swiemkzxg0 dj.;8tch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads jd;zg.ke08 m x2.0 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 sh 6y/nqxq4p 6qiia+e*lown to the right, what is the equivalent resistance? Asixyqn/646e q+iap l*qsume that all wires 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 j -0+sgb mmfqd-fx+n- with res-fg+d+m0b --x qfjmnsistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 kdm1tl6l1 vxy( rf89s((ee fn five identical resistors connected in a combination series and parallel circuit to a voltage sour1mfv8st6ny f1x e(9l r(le d(kce.
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 msv9/ 1vyj2uga combination series and parallel 1uv m syg2/jv9circuit 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);/tcv q(r,xyi ww8 cjyx7:kgk8 7juu diagram, all of the bulbs are identical. Which bulb 7kjj(7 y xwgw utrc8,xivy/);c8:kuqwill be the 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 batt mq/mod g-9vb/ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown ioq/v-/dmgbm 9 n 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 ideahexy96t pf((s8jnc u 9l ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter txsu8jche( (f ny6p99reads 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+g47 vs-zpq2 lho1 )qwfqaq, m switch and three resistors are connected as shown. With the switch open as shown in the di )w2as q4oplzmq7+h-q g1,fqvagram 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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