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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 currenti 94k5eaj7al23iaub3dzrx 7 r exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electr9ura 3lj7ike3d245a7 z arxibon 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 parallel, the_________each r/5a 2 xcltu aqn l2fr6j2:a-ynesistor is thej a2f2n5nl-atal26/ qxyur c : 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 lightb*y06qdk fgl j7.mzcb0ulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This 6zjg* cdkm0l q0bf7.yhappens 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 6471/u rno*golisb c.0:vb6vio(t/ooo qrb ybeing replaced with LEDs. LED is the acronym for whio * n07/o(yv v l/cbur:t1oo4. 6ogs oi6qrbbich 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 resistor has length L and cross-sectional area A;6 43 o:wgmfo.sbaeen . 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 ra 3w6;moso :g nbae.f4etio 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 9ojjkqbxck- 0 )bg0+-g5ae8 dzk dr,j same material. Wire II has twice the diameter and twice the len- c +z0g-o b bdj0dg)erk8jk9q5jx,ak gth 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 material but has twice tmf jh dznbi5 m) )ab0lm/y/s ,i8o,tsn+5w js*he diameter and half the length of wire X. If wire X has a resistance bmjw0sd,8)nnja5i/fzy , iot*)m+s b/shm5 l 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 re1zq7q z mk*a8xsistor has length 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 resistance of this material because of x7*q18qa zzk mthis 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 butpf 0sj,x+y/c (a x4el6(7mqzj oyg-nlb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lig+4lgz0 a,76t -y pmyx(o j xj(/ncefqshtbulb 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 resi0w 96rfee4 psistors are made of the same material. The length and radius of each resistor is irfw6pee409s :
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 connecte5s5 bhzgx(, 6gaj w*.f/infxpl5s u1kd to a battery in the following way: “Two resistors are connected in series. This combinat.bfxks5hp,g 56*fnu (wgal1xs5 /zi jion 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 accompanying circuit dvlr8*8v c-es cho eo*/; qr0wliagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter readingr* *lw h;o8elv-r s/eqoccv80 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 compoc:tw 00 /tigxwkf7 y:pund circuit shown to the right. The three bulbs 1, 2, and 3 - repreyx7/p :f: igw0wcttk0sented as 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 thevp)s fw/0 pawkc08 .bmen d0g; current in all three resistors is equal, which of the following stav w pce0g8w0s/p d0bafn.m;)ktements 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 ofvfd*qe( r.,bh6;xh bx 5 identical light bulbs and 2,bhr fvb xx(.h; e6qd* 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 concerning the simplp5cbl 7pzb h93 +bas,he circuit shown where resistors R1, R2 and R3 are have equal relhp7zb+sp 3bab,9h 5 csistances?


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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 Xbz2d4s. ) 8hujtg4m*xdpoc 5i3gi+s t is brighter than bulb Y. Assume all circuitux g5phdg3t4b+2mti z sc.) s84 iodj* 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 pass through the identified resi(q*cm0vq3 oj3jefbe jq 9 :5exstor in 5 seconds onco50qm q(9qxjbe*3 f jee 3jv:ce 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,+w f npmp2gh+ following simple circuit have the same resistance, which woh+mnp ,wf g2+puld 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 accompanying circuibv0 8x qxv;4t9k f-vlgt diagram, the current through the 6.0 Ω resistor is 1.qx -xt0b8lvv v;9k4fg 0 A. What 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 are connected in series to a battery. di/v lmk 9/.la5p ln,fSuppose R1 carries a current ofkmi/vfl/l5dap, .ln 9 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 ptqnp7m6 /pwa7arallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the cuwapqnt/7p m7 6rrent 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 voltszsrc40 oc9w+ 3 cs*,:z,a agzmail)pu. What is the maximum value of tl,scrgmzz490 wpia:sc,ao+) uazc3 *he current under 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 60 watt lightby. *)+9 tnj6j hzdqedyulb designed to operate at 120 vodj9znq et+*h )6yjd.ylts?

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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 curre7u)srk2u g;g t1 :ca4 mc,xn6cezil)nnt flows through a 4 ohm resistor that is dissipating 36 watts of powngs c c21ax,ezi ):;luu467m)kgrcnt 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 used to press clothes is marked "1ldq33- a, /ig 1n6kzv;ev drws20 volt, 600 watt.” In normal us;-z rqvdl,e3 1k 6wavdsi/g3ne, 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 produced by fu lh+4g+*a +zhdlvb7vqrg 0xpv3- 5ya circuit containing ov +ggbahh+7p*4+30rfl5 lv vuy-q dzxnly three 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 three 1.0 h0 p5bm0/ oeya Ω resistors. Which of the following equivalent resistances CANNOT be produced us myoahep0/5b0ing 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 differe +o6 2u ,yk0t25pyyu5nphe xtjnt values can be connected together in different configurations. If all three resistors are used in a circuit, how many differp56y+xjy0 tkyu h u,522epntoent 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, ao1 hkz4 fsmmt2k 1o4ab/l3q *t total power P is dissipatkq4bo1hm1 4kz* a ft 2/mo3lsted 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 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 paralle/uclpol v)v (7b .nt,6e u(sycl, the equivalent resistance of the cotun(ubc ov).e/lv , y6p7ls(cmbination 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 resistg ki/b0z9zyfz15+ d8( d o5byoie9aw fj7khi8 ance of 12Ω when operating at 120 volts. What is the z9(yhiei5zyz9 bf8 8j d 0 7iakwb/g1+k5doof 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 c n e +phvj8*js.-v0.co3uexq85 t fboa 4 ohm resistor that is dissipating 36 wasfeuvbc*.oq8x o0+p j5.c n8vj 3-ethtts 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 cnxh+f dw 2fvu,sol/t*b /c* )ronnected to 120 volts. If the price of end ur/stc / loxv*h*+bf) w,f2lectricity 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 con k. pp*qk0ika8g 2luo.tinuously fo0qa.pkkugk o.8p2i l* r 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 4.00 A through a lot ogsnv79 i-h. 1zak86 y.jnaightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistancezva.k79tj1n6n h8a-oo.giy s 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 familhtpri6oar1pr8: xf4 8y of 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 tha6ofir88tr phxrp4 :1 e 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 connei /8*mxssnvn 9cted to four resistors to form a simple circuit as shown to the right. /mxss8nvn9 *i
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 resistoryrcugb7 qg. 2u l k.1)(ntjc.0 bdg)obs to form a simple circuit as sho q7n2 )0ut.r.obk(bduc.g1cl)gj yb gwn to the 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 ammeter, a switch+fsi; c:sa. ke and three resistors are connected as shown. With the switch opena;k.sie f+sc: 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, a+vv3 ro:rbv6aej new.t*s s ,6n ideal ammeter, a switch and three resistors are connected as shown. With the switch openeb6wsvo,:a tr v.je3sr v6n* + 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,k,xqh.me2tv. c p :g5n a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amm,nvxc5 egp : h.2k.mqteter 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 th zf,pk ,eov-x0e right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical reso fk-0pex ,zv,istance 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 /q(u qnl5vq - howhqu49pkn,5 resihoqqn5hlq ,(95 uv-n/4uwk qp stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 8uxcmlqa24e)sz70h xbh)6wo in a combination serm4qxxs)6c )oa hu7z0ew8b 2lh ies 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 s tb u.6 ejobtofgo m(o2le1ec42+:2zshows five identical resistors connected in a combination series and parallel cirg( f+s6lub2jeoot:oc.m 4o1bet22z e cuit 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 identicw nqyeo:.nipv a9.n f/3d/h/ val. Which bulb will be the brightestey3/d /i vowf9n avqp..:/hn n?


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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(/u3fnjv/ y6n fo)fr6xrjs h7tors are connected as shown. With the switch open as shown in the di rh)uxo3nfj6syn j/vf/r (7f6agram 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, a2ns mapy7g-) x n:7goi switch and three resistors are connected as shown. With the switch open as shown in the diagram gn72y7g n oxsi:pa-m )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 switclur.0wr2iz o5xr3 ;tcq4)qzc h and three resistors are connected as shown. With the switch open as showc i qrw2xzl.cu 4tq )30zr;o5rn 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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