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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 qe)nt.v c0/ snshown, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flowv/)q0nst .c en 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 cod*)7 -vujbhe rfz ;5bbnnected in parallel, the_________each resistor is b jhre- 7udbb;5z v)*fthe 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 y k8n8l u-p5ywfilament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. Thun p-5 yky8l8wis 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 rept1c35f,m . nku) w p70fdjya9b d)pycalaced with LEDs. LED is the acronym for which f53 y.dy)ua, bc fw7ctpdj)9 ak0p1nmone 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 crossf 2a htgvmc fy h9e5h6h/tn0.1euon;:-sectional area A. It ise hh:o2.h ymt cn h; af610vfn9t/5uge 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 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 twice t:gd6skb 2hq*n i01khvhe diameter and twice the length of I. If I has resi6kbvn* d2s:k0h 1giq hstance 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 the diameterqs9c)*bx(y-:s cvsgx : lq: nc and half the length of wire X. If wire X has a resistance of R then wi -v:xbqy(x9)snsqcg :lccs*:re 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 radius r. This piece of m h;xfyl4vc t )iz3.mi9aterial is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of this ich; itm vly4fx9).z3 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 decideqt 89 dy*fmrhl/-gyl ;s to modify the filament. How should the filament of a lightbulb be modified in order to make the li8 fd g -qllyry9;*/hmtghtbulb 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 made of the same material. The length ad7 .6 jtl*j1dlsmnt5cnd radius of lj1*c nlt6.jsdd t7m5 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 connem-vs*5 cxidl7 cted to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected57mcs*vxidl - 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 diagram has internal bl 6wwvcg08l2 b ;+dueresistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The v lw e;wu26gvbl80cb +doltmeter 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. Tpt.:4o 4ujoh ghe three bulbs 1, 2, and 3 - represented h g4opu:o. t4jas 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 v6rvqc flbn, 0:ee-k ;qh54hkthe current in all three resistors is equale;k5-cq: n 6rv qhb4fe,hkl0v, which 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 represed .l 3 ifvsbh;;j9gdr2nts a simple electric circuit composed of 5 identical light bulbs and 2 flashlig r2 3;dfd.9vlshi;bj ght 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 s6 x f *nyrtr5sq46)mhgtatements is NOT true concerning the simple circuit shown where resistn 6x5rg*rq 4t6)yfsmhors R1, R2 and R3 are 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 l9h7 1)2bvs msgzsskc.( :qi aandY are 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 battel: ks2mbs)gzss7 (vc .hq19iary, 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 resisi ppsfi ze6 ,/4v9puf16p+au+xjjb1gtor in 5 seconds once the circuit +9fp6 ibv1 1jipu/pejp4u+x,6 sgfa z 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 4do21j8wj v vpcircuit have the same p w4dvj 1j82ovresistance, 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 accompanying circuit diagram, the current throue 1;3j rz7vv1g kpk)kmgh the 6.0 Ω resistor is 1.0 A. What is the power supply vov1krk1z p)3kgj7 mv;eltage 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 avwde 6f1k,3/krtm2wj k szcld+/v -;r battery. Suppose R1 carries a current 2/kr v +s3we1;ddjrc,vwf zkm6k-l/tof 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 ,6gzrecxd61p , R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V 1g d,zx6rp6ce 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 120 volts. m6dl9c ,my ad,nb890 z)0x hcfdpc:sa What is the maximum value of the current under these cp db9m:hxsd0,6f)z 9ndymacal,c c08onditions?

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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 lightl,i qbq:edv94 py e(/tbulb designed to operate at 120 volts? ,dp9 eleq4 :qbtviy(/

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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 dissip9 m6eofg26gij ating 36 wagjgmif e66 o92tts 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 clothj5a6hzwu 7u2;gms7xqes is marked "120 volt, 600 watt.” In normaq5a2ug7hw sum;7zjx 6 l use, 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 mlme9o41s+vcbp gh ;g 4-ph*qproduced by a circuit containing only three identical s gp+ v l*e9;1pbh-mg44qhmoc6Ω 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 1g5n iu9;4mby*-bde pv.0 Ω resistors. Which of the following equivalent resistances 5bg*e n;u9- bip4vm ydCANNOT 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 u-opad l uz:tg i607c7values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resisz7ip-oda gu076 t luc:tance 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 tot;;c qznj ci fj25cjv3vwyc,1/al power P is dissipated in the circuit. How much tota v,jv;5zic qc2j31 wjc; ncy/fl 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 resist q/xcogq3 .;n x(tuxa/ors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of xo3.aqg qxctx(un //; 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 rrvw .c:n2b*-qck u(g nu zs4g;esistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water fromvbn.zg;:wu ( 2gc-u ksn*rcq4 $15^{\circ}C$ 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 dissipating 36 kw5 7kgpk18,-vvfry yan,c/v watts of powew/rack 7gn f8vky,p-1,v v5ykr?

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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 curthmurt3bs85unc /pq +7+g a*frent when connected to 120 volts. If the price of electriciu57 f+ s/+r*hc ta 3tqug8mbnpty 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 wousm2lw(*t iwe0h v9i9n p fw,z/ld it cost to keep a 100W lightbulb lit continuously for 1 year at a ww9f/ph,* v90 n(tmwlz is2ierate 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 lig2 fr6vcrti+z,you6,ctt hct; 5s5vk +htbulb results in a power of 24.0 W associated with the r6rtu ,2s,ct6c;5 fcoz+5 tvv+h kyitbulb. 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 of six owns a cox 0e*9k8rgjwvmputer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere frkewg*xj 980vuse, 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 resistor(.i na .ni2ik098-ab qsyvpfds to form a simple circuit as s-b is. k f.8dn9qpya(nvaii2 0hown 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 ree8fjs/: 2ghfkjet2/ wsistors to form a simple circuit e2gj ek2:jt8//fs f hwas shown 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 and three resisse+60 .)ivg5u ,hj,uyxfblvw6 8jon k dj0 0nmtors are connected as shown. With the switch open as shown in the diagram thlk0n0uej 56vjgu8s. mv )ix,db6no+,0 fj hywe 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 jpcd hbw6jv+3+ej 59sec*c ;vresistors are connected as shown. With the switch open as shown in the diagram the ammeter rec+ *jwc5+jveh9p6 jv3s;e cdbads 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, arby3 b1ia0l7n )r eho;e0: vjn x;3djo switch and three resistors are connected as shown. With the switch open as shown in the di;vab;join:njrd07e1r )beo0l x33 h yagram 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, whatah 4pkhl3:4eol :,gt q is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all gpl,thk4l :3qoa4 h:ethree 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 resis-)i.lk h7gr0 e9h xrpjtance of the circuit shown to the right with resista) 7 r pj9g-x0hi.rehklnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 re ta+wcju9*.zi sistors connected in a combination series and parallel circuit to a voltage souw.uia9 *+jzct rce.
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 comcog. 0k4r. i21 m04trpiiipx d h1gd.fbination series and1.og. f.rdp40itgkri mi 0ichp2 x1d 4 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 dia 6ub-. r 7cjkl-sbj,ongram, all of the bulbs are identical. Which bulb will be the brightestrk b, jb6sol.7c j--un?


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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 3 t ukt 05t4hnz ipgja6;v:rz1,/zvusammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram thett,gavz/nsipz1:5zhvu;6j 4rk t u30 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 thf qb0paqao- mvu:s9 a52z;y1 tree resistors are connected as showybq:t-5f92 aa;ouvm0qs1az p n. 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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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 aj(do ylh:zz lk7 0kv/*nd three resistors are connected as sovjlk h(*l/:yz 0zd7k hown. 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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