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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 metal resp 75 bonwvluq;s8:li. 8j2l teistor connected to the battery. Which one of the following choices best describes the direct.ls8w o 8n b27:qjt5uli;pvleion 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 connected in parallel, the__bfc)+qf; pr9gq(6d 9 rk-ycd x_______each resistor is the saxp d;cc (q-+y6k)gfd9r q f9rbme.

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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 filame 0h;go -dagix:nt wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becaus; :gog- d0hxaie

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.08: Some standardhm,bu+ 3dcl2u household lights are being replaced with LEDs. LED is the acronym for which onelhm + u2du,bc3 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-sectiona ux t:wg.l:e(jb-8x uml 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 resistor t(8u- :weuxjxb:.glm?

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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 hasp/4gao0uw u-t twice the diameter and twice the length of I. If I has resistance R,tgp0 -u4u/owa 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 hqwl u e9aelrw: ni923)as twice the diameter and half the lengtw 9a 2: qulweli)3n9reh of 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 length L and radius r. This piece .; zdio 2asoz2of material is then drawn so that it is a cylinder with new length 2L. What happens to the resa;ioo z2.ds2zistance 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 wbvvvbw758jb d cca i;+ n1h;2kants to make a brighter light bulb. He decides to modify the filament. How should the filament of a light7a v;hckivj ;8+c2nb1bbd w5v bulb 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 made of the rulq0nk;6hhx . lu6i: same material. The length and radius of each resihuq6 . nl0:;khrxul 6istor 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 battery in thsm +mup05pq o4e following way: “Two resistors are connected in series. This combination o4 o0 up+mqpm5sf 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 circu26q,5cvf lb8 qizaqc/it diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most nearly: 6/lqc2 aqvfzb,c 8i5q


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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 circuiaf21cv dsyi;* zyifs1kh18 .mt shown to the right. The three bulbs 1, 2, andk f;2yfcs1h y*v ams18di. 1zi 3 - represented 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 el o(g5 cw0icaf0ectrical circuit at the right. If the current in all three resistors is equal, which of the following statements mc 50ag(f o0icwust 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 represeq 6tt;qh5a(xgn8b+ +xmyms * jnts a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Wh;*(b amytqg5xtjsxq8h++6 m n ich 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 simple cird- hhj surh4.l a3rz97cuit shown where resistousda h9zr 4-h7jl. 3rhrs 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 andY are connected in series to a battery. Bjg:y vk9sgm,;xpt-dm m) 3lr. ulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X a xrs ;k9mgmp gml,d-y:j3tv.)ndY 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 th+yv-(xg7p emrgx0 c6crough the identified resistor in 5 seconds once the ci( 0xg-mr xy p6cegvc+7rcuit 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 followic)q5a 7 zvup:sng simple circuit have the same resistance, which would dissipate the greatest power? :av5 pzq)c7us


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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 diagra6ku a1 l cvo;rw2-g5qzm, the current through the 6.0 Ω resistor is 1.0 a ;1r5k6qo2zlv u-wgcA. 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 connectjzn8gi( f/z5r tce /j0sy rm(1ed in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissip rijec15ztrgz(/ mf0s(8/jny ates 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 resisto0a ;di /k xha5c56qq+zczu4xlrs R1, R2 andR3 are connected in parallel to a batteryq0 6li+/u z;4zkqcdh 5cxxa5a . Suppose 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 120 vokt9uhk902 v folts. What is the maximum value of the vkk0fo 299hu tcurrent 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 rq,liu00e qu. watt lightbulb designed to operate at 120 volts?leu,r0q.qu0 i

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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 4m ri97 u, c5ufz*;+yuk2flaca ohm resistor that is dissipating 36 watts of poweca r,5kml u;f +au97y2 *zifucr?

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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 mar/ u:hi v9g6mpgt u3wrp0wv1j+cd+ i-oked "120 volt, 600 watt.” In norma9up1wdgi0vp h- /wmov6tg +c3i+ urj: 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 resisml qh,lac4,za bkj*)hms qbz)l 8)0/utances could NOT be produced by a circuit containing only three identickb,q a lc8b)zu4mlah/*mz0 j)lh, q )sal 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. Which of the (v1hepor -5s a-unbm;following equivalent resistances CANNOT bee-5h (svrnb 1a up;om- 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 dif onk; jw,rdxl,e+ /c5aferent values can be connected together in different configurations. If all three resis5n/lko;+dcxa,wre j, tors 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 batt*jim/ ;4 c(v3)fb (9b rxbam 1uwlcriqery, a total power P is dissipated in the circuit. How muc iv)bb4mrb lf *ucc; xwq/(a9(1mjr3ih 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, ar r-oyd+s/)itqy+j ie4 e connected in parallel, the equivalent resistance of the combination is 5Ω . Which of rt/-y)+ 4+yeo q sijidthe 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 designeduxn ndj0w1ck) wp+;flsks5x y4k.uyb 6 h8z ;) such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum axw y8wh1kd 5un jfy;6 bzk0+;pss) u)nkl.4cxmount 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 4 ohm resistor that pioc78i)ghl s j;lyl+5rq1-z is dissipating 36 watts of power?;1 sciop5 q)lhzyll r+j7-g 8i

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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.-6 flj9z 1cu3i mrhgqgq)8l)p1 hark of current when connected to 120 volts. If the 3a.g lj6hr9)1lumk 8-r)zgc qq p1hfiprice 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 t nkk p2nl7j3i1p/d;k vo keep a 100W lightbulb lit continuousl 12/;n3v7dl kpn jkikpy for 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 tq c js8v 5rlzh1(x23tchrough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistanchl82x j(3cs vctz51qr e 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 sixou mz +q;,goe0 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 no ug0om ;eq+z,umber 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 p8vdzuy(ul :0+4ojsv is connected to four resistors to form a simple circuit z 0:8 o(puj l+uvyv4dsas shown 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 resistors to f+j+yi ewf u0 opg3:delh ej)20orm a simple circuit as shown to 0+3luwgj)pf h o +ye 2eed:0ijthe 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 resistors are concbp ) j91)rn+je3ysuloflk-p3j 7 m-qnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere b) j ujsl9pk) f73-l1-q+yrcjp3moens.
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 isc79j21ik b x 6yh2rmbdeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the 9y6ri kxhcs2mb2 j 7b1ammeter 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 switch and three resistors ardhwizg h07a/h 3e dai/6dhsnn ba-,,6e connected as shown. With the switch open as shown in the diagramn g7hn0a ,/ea,hdhdi6bzw/6 s3haid- 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 equivalen* 5ex vx+hgi:ot resistance? Assume that all wires are ideal, the batteh 5 xev:ox*ig+ry 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 equivalent1x q4.2mpr wqz resistance of the circuit shown to the right with resistances2qqmzw4rx 1.p $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistor:taf4imi j ;,rs connected in a combination serj;i4atr:,i m fies 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 five2 0n :tycvjio1 nt/s(hldy*e 1 identical resistors connected in a combination series and parallel circui2ys1 *o (jhl0cvynd/ nitet1 :t 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 thsn2se41z m/d. it 5xtse bulbs are identical. Which bulb will be the brightsm1 4szed/ 5s2xintt.est?


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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 resistors are co39;e mvwuge c clsppw.:hy/*2nnecteh ce l:w*sc ypwvpe 2.9/;m3ugd as shown. With the 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 ammeter, a switch andt* bfh /c5bc5z/ rv9ogsei9u3 three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readso h/sz9v3gte59 *cirbubc5f/ 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 resist rvddd*9 )zc i9+,nuzaors are connected as shown. With the switch open as dzd, dra c)u9nizv+*9 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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