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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 meta-5 2,biaymler l resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of the electric field through the in y -a2leir,m5bterior 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, tnv p0n(i.ehg5q (cv6kt0 ov 9ohe_________each resistor is t9cievop0t .g0(qv nh( ko6vn5he 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 t8xj w4w)j e nel s5so 0:ewwz;o3g,z1yhe thin filament wire of a lightbulb causes the filament to become whij j z eogw)8elsw4xn3;1ze, w: oy0sw5te hot, while 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 rep+ *0bsipsdft,jo;mk be2ye 0+laced with LEDs. LED is the acronym do00; byej*+s2e f,s tm ip+kbfor which 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-sectionalj.c(.mazm zoi(w a *-j area A. It is to be placed into a circuit, but it first must be cut in half so that the new lengthcjz(m.. w( zj*-omaai 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 materiah+x2p ;7ackmq0 5g(dwtw sof;5 9hshp oelg62 l. Wire II has twice the diameter and twice the length of I. If I has resistance sok p2e h7 (hd x2+t5g lgchq6w;ms0a5;f wop9R, 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 the w6a.5w)h9 le bk(yuj ediameter and half the length of wa )bjl9e5uy 6he kw.(wire 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 lenwy8:iy7 grt.r gth L and radius r. This piece of material is then dra igtr8 rw7y.y:wn so that it is a cylinder with new length 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. He qpn9ep98s5tq6 z p*zmdecides toqzpsz q9n598et6 *p mp modify 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 cylindrical resistors 6zxsd+jv;lr7 are made of the same material. The length and radiulz;d+ r7v6xsj s 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 R, are connected to a batterc hvmt5vi6395,8b) mrqkr 0szaok1h w y in the following way: “Two resistors are connected in series. This combination of two resk9 rm3)t6vavq1 5zh ikhw 5b0o8mr,csistors 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 icvk*:, 2z:nrcl 46 olahwtj6 wn the accompanying circuit diagram has internal resistance 10.0 kW andthkvj*a 2:o6 4n: lzl6w wrcc, the ammeter 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. The6fgq8 sx -6yxg three bulbs 1, 2, and 3 - representedgfg- xsy 686xq 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 thwd- 9lma. 5l jakzn13de right. If the current in all three resistors is equal, which of the followin a nzd-.3jw1d9aklml5 g 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 of 5 jipfy0l xo4gnm 0 -f0+ident fl mj -onigx4f0p0+0yical light bulbs 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 2so lvfya cv39* y)(rufollowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistr)uac9vvoyy (s*l32f ances?


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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 andmzj;z1h8.g:dxd: *mce fimj*v1px) eY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all cic1:jfz):ephg;dme8x*1vxij m d.m* z rcuit 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 identifrk2r k2:,p4zpe w5p vfied resistor in z pe vf2prw 4p,r2:5kk5 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 folcckl 4cx-ch:8 lowing simple circuit have the same resistance, which would dissipate the greatest powckccl:48cxh -er?


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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 accompanz-mo9:vja/ *sep4i ;s w imhw7ying circuit diagram, the current through the 6.0 Ω resiw/wms4 soamvp97 * zij:; ihe-stor is 1.0 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 resistorjh),k76+ sh y7thw+bzdwas(p s R1, R2, and R3 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 dissip w,+hb6 ps7)7zdasy wjh(tk+hates 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 arhcq0pqv* i 0qh/.l1da e connected in parallel to a battery. hc phl*v.d0 i0a /qqq1Suppose 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 120her+ a)6hj6l1uhl , js volts. What is the maximum value of the currentej +6rlshhhj u)6l1,a 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 lightbulb designed to og0wlqh(pebquh ,).* operate at 120 volu0 lpbe( )qg ow.h*qh,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 flows through a 4 ohm resistor that is dissipating 361f m cs qoxhxm7-857yc watts of powery87mcx 5f-7qh1 xc som?

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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 vo*e p )l5mvvcn2,* xka8vddkt-lt, 600 watt.” In normal us a-8dnt epk2 )x *l*vkd5vmc,ve, 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 redk anjo1a67,: eyr d7qsistances could NOT be produced by a circuit containing only three identical 6Ω resi6:q17 aya knoej,dd7rstors?

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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 the..l6c+c5lkvkiea2ig d ab ./ hho4al2 following equivalent resistances CANNOT be produced using all three ree 5. db2i.hk o4.2c/la+l khligac6 vasistors?

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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 connected together in diff5t ;fhkhygtf45:yn)qerent configurations. If all three resistors are used in a circuit, how many different values of total resistafq 4ygn)hty;5t5:hfk nce 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 gl;1/hvy mx 4g,w;qq6oc) uhz 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 is zuhhwqy)lgo6z q;/cv 4mxg1;, ero.

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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 ol2,b i+t4n 5h ntdikf6q.n:qtance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about thelt+b k.nonfit5:q dq ,2i64nh 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 resistance of 12Ω ka rgc7,-; uks1 sqyiac d11/ / txgf864azwgewhen operating at 120 volts. What is the minimum amount of time that it would tak,c1acyw/ rda1 agx/kt1- qss8eugki ;f zg74 6e 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 4 ohm resistor that is dissipa ipmcxs9m,:a8i* i.qv 70km dsting 36 watts ofici d*mpk0smi. m7:,8vqs x9a 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 voltfdw afp, u1.w:gzh3z8s. If the price of electricity ihwf,p:df 3u1g. zz8w as $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 wbt:aimm, . idon lg(5r*tl):z ould it cost to keep a 100W lightbulb lit continuously for 1 year at a rate oftm.)a,gin t:*ol(mz5d rlbi: $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 (.fahcw; -x jiA through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the followin- xcj(hfwa.i; g 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 j .ntc* xd 86hfdabf 9/pw/:4 wjzun3pa 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 *t4f ndf.naj 3xjd:wph 9/ b8cwz/6pu 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 pjhht++j 6lt1);lzcy to form a simple circuit as shown toh jp)1 ;hj6c++llztt y 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 resistors 16klsw, po.vs to form a simple circuit as shown to ks v.,s w1lo6pthe 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 o4h 7qf:oej6m cwzd;; ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a :ej7dwz;6h qo;cofm 4mperes.
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 thr;o) lrh0 6migmee resistors are connected as shown. With the switch open as shown in the diagram the am;rhm l06i )mogmeter 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 ideal6 /h:6dm sbkrf ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagr6r/m sh k:fbd6am 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 showcr. 9m*3sk.jwm kn6qan to the right, what is the equivalent resistance? mcam 3kw6 9jr*nq .ks.Assume 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 witn 0p7itf/,vfrz(dg0e9m j:nz h i-) zih resistan9-ipdzzz0if/einr jtn, m (0) 7fg:vhces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 reg +ka zm7a*3p4eq: vtysistors connected in a combination ae gz3:t 74qy+pv*kamseries 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 shows five identical resistors connejnv6 aq8/e(o .8 tgbb,dsqe,tcted in a combination series and p8,t bej8s/bog na6(vd q.,qtearallel 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 d b-w yqzk5jc)x5fi 9w/iagram, all of the bulbs are identical. Which bulb will be the brightestwwzi5/ck f9-jq )yxb5?


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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 resist9 t86mr(jezu( pl pz(tors are connected as shown. With the switch open as shown in the diagram the ammeter reads zrl(pme6tut( 9jzp(8 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 gf i 159u4hjmge-v+ voswitch and three resistors are connected as shown. With the switch open as shown in the eo9mfg1 g5 +vuhv4i j-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 switch and three resistors are coq n;9painw3 nd3acgbwtn *lrmq8/9*7nnected as shown. Withi;g78nwmn3a9pb 3*c*w l r9a n /qndqt 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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