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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, az :kl ga*m)f/bq oyuy 8o/w1o.n electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction muyfl/*qzbyo a1w : o/)kog.8of 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 connezg* ocph/o(f28k d6f.fwx0p fcted in parallel, the_________each resistor is2g(f/koof d* 06ph8cwfzfx p. 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 2 kb.5wfc8ve cfilament wire of a lightbulb causes the filament to become white hot,e 5c f2vckwb.8 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 replaced with LEDs. LED ma7b3e .l td-)qr zy/zis the acronym for which one of the followingql.yr -z )7dmzb3ta/ e 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-6dj) e1 6pjg.r kzqdo)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 rkg1jrp6 qe6d)z). ojd atio 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 sam 4:c9xjgnfohg v ath8/*5j2r9sb :pnke material. Wire II has twice the diameter and twice the length of I. If I has resistancohfn* 4g:gxjjc89bv9 / sntha5 pr2k:e 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 twi9)a, ml/azw9rbap8py6x z e jjyy08u 0ce the diameter and half the length of wire X. If wire X has a ru a/lj09yy 68zm)98ejxz aypr,p0w baesistance 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 of e/rbrtv; 5s.h2xeed ,material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of thi ser,be.h /r5xd t;ev2s 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 brighterodd biuq-c7oa u(8)je-q24p gx(. al l light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given voltagaoglj2-p( (uax7 -b dql8eqi4c d )uo.e?


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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 bny c6 - g kaqo uc*w-3dri5d;w)rx-q*made of the same material. The length and radius of each resistor is: ;w qq n6 i-dod )r3*-cxwu- kbra*cy5g
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 connecte*p0lmx laoxyj*va14ol652y a 5z 2e yp)s3szad to a battery in the following way: “Two resistors are connected i31mol) sxa5 2e0p* 4 o6z azja5syy2*xlpvalyn series. This combination 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 accomp;tpxlm9x/ct whwe+gf -9fn8* anying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25ft8w tx x9h+-/ 9npfm* lcwe;g.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 circubvzk,dn/.2pi 5:i3 ao)su qaoit shown to the right. The three bulbs 1, 2, and 3 - repre/v b.3oaii 5nu:2kdapos z,q) sented 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 ato+ /.n.8 zt;zm ttdi) ya,)j vxjcfyf8 the right. If the current in all three resistors is equal, which of the following statement)/ ya 8tio+z.vf,;tcyj.mtn )jz d8fxs 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 el,8b0 fykws -kuectric circuit composed of 5 identical light bulbs and 2 flashlight ce k,wuf80s-bky lls. 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 simple circff3e;d p; gaae :00glwuit shown where resistogla:0d3 fepw g ;ef0;ars 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 seriesa)5sn)wblh dj bq+- 7j to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideq))j5b 7b+-haj dwn slal. 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 througfu uha71vo; 5z /2dppgh the identified resistor in 5 seconds once the circuit was cp1hz 2 /guf p;va57uodlosed?


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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 jr;7my* ;9m0xo jgl1 qabsfp3 simple circuit have the same resistance, which would dissipate thex7ampjs;;9g 13bf mqr *lyjo0 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 f b.w( 1wkc1 ndvrrc9ka3 6p*rthrough the 6.0 Ω resistor is 1.0 A. What is the pcr bcda kvwf.p61rn * w(k931rower 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. Su/50at9f7uu iu u3zpd nppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. What is the voltage across R3uu 9tund753 up0/ faiz?

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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 ac qax*o 6 xu*srv8-kwto-ye0.re connected in parallel to a battery. Suppose R1 has 2V acrosct esk -rv8oyx.06owua-qx**s 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 vo* qr8x9/f0em .g gd+h;ri+vbwg vlj: alts. What is the maximum value of the curren wr9.g0v/dv+ lf;m gxb*e jh8gqia:r +t 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 resif,:j7bd r1i jpeg-t4zstance of a 60 watt lightbulb designed to operate at 120 p-,ebi jrf1g4zj 7 td:volts?

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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 dissipatin;7u:,fh fnj)y npi4g deh1- mhg 36 wat;y-hhn fe)j4nh f1,dumi p:g7ts 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 r5wzq.uf42eo u)g w+-v q vri/press clothes is marked "120 volt, 600 watt.” In normal use,+voq/ qw5 )2urz-4iegfv wr.u 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 resistanwka14qqax+lh 4bc : *ices could NOT be produced by a circuit containing onq1cwhqi 4a+ak4:x*blly 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 -(xbp-,23ft rz -fnjr7pgn zh three 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three resis z(gr,t-n3h f rfj2pbn7-zp x-tors?

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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 differed6b.q /x1dz2k5vp)bkz n yg +knt values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be produced26 zvx dk)dkbgz /kn.yq5 p1+b?

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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 resistob .p.; y2ddix)x gkz9gr is connected to a battery, a total power P is dissipated in the circuit. How mu.kxg9gzpdd x)i;by.2 ch 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, havi*na9vx ;j 8 ;xdwnggh6ng resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about th h8dggja 9x xn6*;nwv;e 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 thato qrj-5 fll;att;f+0s it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg t o 5fs+f0;ja rll;t-qof 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 thjya-jv7no k,9rough a 4 ohm resistor that is dissipating 36 watts oanvjjkoy-,97 f 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 8dz8io4y qp p.moxd)1draws 13 amperes of current when connected to 120 volts. If the price of electripzq oi.yd m)dox8148pcity 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 kxyq 7mqvu ja - yhr-n0o7) mcqzc*98.(qm 5qccontinuously f qhkoyx)9-v*c. aq0 - y ccmm5qmq( u7r8jznq7or 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.0ofdk9xwx b1/grlh * lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choicrh g w*/0 odx9lbkx1f.es 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-leo)hf4 alx 8 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 fus-al4x 8loe)fhe, 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 resisto j,obc2e/w(rxtx ) m/lrs to form a simple circuit as shown to the rc), / (teow/mb2jl xxright.
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 rrq36jb3svv;x qi 3h1mesistors to form a simple circuit as showbxj36i;v3v3hqr1mq s n 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, ask3p )fkxwtec. 4o9 5u switch and three resistors are connected as shown. With the switch open as shown in the diagram 9t3u efko45)pkc wx .sthe 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 resistors p/*fo-bjq: as are connected as shown. With the switch open as shown in the dqos:j/*pbfa - iagram 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, a swgfn),rzxwy9sd7 my k6p9/1 qritch and three resistors are connected as shown. With the switch open as shown in the diagram d1ykw r7rpn/z yx 9f,s96gmq)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 equivalent re:l)slu4cfs l .sistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors havels4 : csfu).ll 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 tl:d+4 5uysarx -c(nqdhe circuit shown to the right with resistance5x:d4u(snl +qdy-a crs $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 in tb7 zyq(bikr3et: u0eb.cp.o,i,8ala combination series and parallel circuit i a ei qckp,.0, e3u:lzy(.r tbb7b8toto 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 fivm ep/6o3 )josze identical resistors connected in a combination series and parallel circuioj s3o)pm e6/zt 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 tfgyl * xjkchvm+1cpj.52;l n8he bulbs are identical. Which bulb w mc+lvl x1hpfnyj.j;cgk*285ill be the brightest?


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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 swis /f1gg6 )gqfb,mn+ ryqj( 3v(s6awiytch and three resistors are connected as shown. With the switch open as shown in6gygn13r vfw i(gym/j fqas,) +6sbq( 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 1y ey. i/ 71idt4hkt+w2bwzvfthree resistors are conne dz vewi / 7fkt4y12+wh.ibt1ycted as shown. 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 and three resistors are c vpfr u/0s1 mc3h a 7zprura-jmy281+konnected as shown. With the switch 3h0r12j mmc-sz/8kr y+7 u1raf p vupaopen 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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