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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 5u. 5dz: toyufs y(6jvcurrent exists in the metal resistor connected to the battery. Which one of the following choices best describes th 5ds(5v :zf6j.toyuy ue 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 resistor-lkikl5drl- ) s are connected in parallel, the_________each resis) kli5-kr-lld tor is the 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 lightbuaeu0) v6f;q xclb causes the filament to become white h)q c e;0v6fuxaot, 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 houset fs3tjz)7i q9app )r9hold lights are being replaced with LEDs. LED is the acronym for whichaz7pr if pstq)399)t j 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 cro:muu5 u.w3uem ss-sectional 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 ol5eumm.3u uu:w d 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 ar*p9hio aa g70n4m3m wte made of the same material. Wire II has twice the diameter and twice the length of I. If I has resista* a9t oi74wpm3n0mghance 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 th w-5:nnsim imz+)cak xw i7.4we same material but has twice the diameter and half the length of wire X. If wire X has a ress i-wzai7 w4cx:m+wm ).inn k5istance 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 ; 0vek/y::bbh0pkyr-dn1+ plfg ca5p and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resisrylhf dk:;+ p- v1cn/b be0pyap g:05ktance 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 f 3qgb k578q:roc pp .xdtt(x6a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in 8.t kg: qdoqxpt7c3bxrf6 p5(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 ,3 yu:rflij+dhzjv 2,resistors are made of the same material. The length and rfy l jdj2,3ur:hvzi ,+adius 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, e4z(r:891bqg yxokv p22gb9jlk 4ibpjach of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two reg92x4pv:rqb2i bo1jp lby gk9 j4z 8(ksistors 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 dilnr;b n;jut *fk3+f-rm++ e9cigtj/iagram 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 mos+ fl3krn +c+;imt;9ig *tru-jbn/fjet 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 compou2;cwmp c15gyjnd circuit shown to the right. The three bulbs 1, 2, and 3gj2mwpc 51cy ; - 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 electrical circuit at the rijew( f l-w8kh0u0k 5r hj.zlg)ght. If the current in all three resistors is equal,rh58) ( lg h- w0j.wkj0elzfuk 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 represents a simple electric circuit 6 adm2.+0 fcydsot b9ncomposed of 5 identical light bulbs and 2 flashlight cel m6cb9s+o dt dyn0f.a2ls. 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 thotxhk8x wv x2c52 :ju9e simple circuit shown xu2 h8x9t2 wx:cv5ojk where resistors 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 b 9 pwtpj0pu/rous66 c4attery. Bulb X is brighter than bulb Y. Assume all circuit elements are ide066 wc jrp/uopup4st9al. 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 cou h;5 oaqg4u +jgr(qn+4wcma; alombs will pass through the identified resistor in 5 seconds once w 4go5ahqg4n;+q; c+ jaa(rmuthe 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 simpl ma i.ut kp8pkd, wj01wei+ l(,kx*-epe circuit have the same resistance, which wo(1wpe, wkipu8+l-jkti a,e* pxk.0dm uld 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 through the 6.0jgy-)lj*j s2 p Ω resistor is 1.0 A. What is the power supply voltal -jjsp2*jy )gge 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 ar)ttxknp j 7:bjg nv2-t3; o1wne connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. nvp:wn1 bo;jx2 gtjtn7 t 3k)-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 db-w qhk48fj 1parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in R4kj -d1wfhb8 q3?

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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. What i p*,/srb hi2t xvo,pj77ez y4 tk54glms the maximum value of the current under these conditi tsj47gi,plpxh,z 4/*yem2bk5ovt7rons?

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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 operakta (; *eue+jtte at 120 volteea j*tt(; +uks?

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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 zh 1czz4wz(70psxe :yof)yo(dissipating 36 waw zhx:4s7fp1z zc yy0((zooe)tts 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 clothes is markedw;w hxuwi 7:j7 "120 volt, 600 watt.” In normal use, the curr;u :hw7w7ixjwent 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 resikm*au.ne:: mcstances could NOT be produced by a circuit containing *mecnk::m. ua only 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 Ω resix9svfil8ff;,7t t(o hstors. Which of the following equivalent resistance9ot (tvil xsfff78h,;s CANNOT 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 values can be conne : (6xvnbfg:u-dryfrne*r 5c-cted together in different configurations. If all three resistod6 yn-::-vxefrc r*n gbr(5u frs 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 cisv x0; 1r5(dupmq 8zP is dissipated in the circuit. How much z15rxu( p ;cmi0d8vsqtotal 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 0g w3 f8u.nlrq7:rr1pt g9sf wand R2, are connected in parallel, the equivalent renl t rgr7ug0s.w39f1 w:r8fpqsistance of 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 resistance oz+1y jdju2 mi3b v()brf 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 iujby)r 2 d1jv mz3(b+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,2t brg(bk8ao6rpa sj:wr9a- dh4;jnting 36 watts of power?bg (r: -rj6,bk24aj;wd9rth 8a a nsop

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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 drawsog .+mjvcjqsz,x,:i 1 ifv6p0d8ex t* 13 amperes of current when connected to 120 volts. If the pj m gqxe,i ij16xs,.ftvzc v+8* :d0oprice 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 wo/un8 iomorht6j4wa ,5 uld it cost to keep a 100W lightbulb lit continuo,ro6t5ow um j ain8/4husly 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 through a lightbulb results in a ponger 7;u.qg j8.bx6zymgo*4u; fm rn3 wer of 24.0 W associated with the bulb. Which one of . gur 4;bnm8qnfeo *zgg;ruj.m63y7x 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 sqqe3c2,ydtih5 j0jr3 f /ac/zix 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 computerzccy3t q/25 / 3je,hqi0arf jds 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 f;fe084pe*-gw;n)dp ouo bpbv our resistors to form a simple circuit as shown np8 vdb-wop4pg0e );b; *f uoeto 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 form a simple ci2 oa9rf p6f0i8 e5swgcrcuit as shown to the right. i cw56re0 s298aofpgf
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 switenza3g )myc 3eh0edsz9 q x i4).sf3*nch and three resistors are connected as shown. With the switche.)n9yxh3fidgm)sq4 n 3*3 e zes 0caz 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal ammeter7w69+yqx yirn, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readsr 6qyx y9niw7+ 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 thy qz6cb4iyt ic25cw 08qnoqu/8+ q ,biree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a8wy+8y2,qq5bn oi0 it/ uzci46 cqbqcmperes.
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 thv8dum.l- hx)kw 3+gfn 7t)snte equivalent resistance? Assume that all wires are ideal,3 fut7 )lkntm gdv-+xs)whn8. 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 resistancewo3eh jeo9 -(h of the circuit shown to the right with resistan eew j3o9hh(o-ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 bel7z.lya)omb g 6ow shows five identical resistors connected in a combination series and paralloyza7m l6)b. gel 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 r,qmv wnl k97gjy2j-.q esistors connected in a combination series and parallel circuit to a voltaqw9jm.klgyn2,j7 q-vge 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 +bou+sr5pt m j 2f6v/*ctju. jdiagram, all of the bulbs are identical. Which bulb will be the brightev+t ou jt+6 cfjbs .*2jrmu/5pst?


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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 swzi1 br),g xe0zl db(c)itch and three resistors are connected as shown. With the switch open as z)gx1ezicb ,l()bd 0r 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 and thre .bps)b4w1iuc w.3q yje resistors are connected as shown. With t u ij .wp1c3).bbsyqw4he 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 ammeterd*xd7v+m dk +o +sfy)o, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readsfs++ovdy +mdxk *d)o7 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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