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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 show,zocy .kv eg2- 6 5bx*fyvcdg)n, an electric current exists in the metal 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 tgy)v yk,xf 6c.b g*v52d o-eczhe 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 jc+nkk(x 74bnex +x8 gare connected in parallel, the_________each resistor is thc(8j+4k nx+e x7 kngxbe 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 td6 ;s gr mbaso0 5feczc3*-v)t0 wpgqom. i3:qhin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connectedtg6 s3qomsg.-5 baodzwv0)0 cr i m3c:;ep* fq 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 house vbib 944rrpy0hold lights are being replaced with LEDs. LED is the acronym for which one of the following choices0rib9pvbyr 4 4?

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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 atiy( vw9l,f:w8p:- 6 enhbxhond cross-sectional area A. It is to be placed into a circuit, but it first muteiw 9hl:fw ,v-:hb p(nxo6y8st 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 ha7ax.9qbg ny*, 5z f luf)o.klys twice the diameter and twice the length of I. If I has*)o.,b75l . faquzy x9ynklg f resistance 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 diameter and halfp9nmb qr o,r4bl1zrv .kg+v-- the length of w r b4orr1l,b- qmvkv +g.9pn-zire 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 ,:7gz,as0* wgizt av m :hnl7opiece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material beczia :nm, ,t*w aog:77vhs0lgzause 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 makcdd: zo+ a2d(yi9u2ny:o ql ww9j+(tge a brighter light bulb. He decides to modify the filament. How should t+q+u:j92 (yz2 lcow wa( gyodi:ddtn9 he 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 are made of the same materkh-aoe/7v b 6ivska: (ial. The length and radius of each resistoi67(h/: vok- svaebakr 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 connecte9:)lslxl vn+1-piuoq d to a battery in the following way: “Two v- :ix)nl1uqls9p+lo resistors are connected in 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 accompanying c5ly,dysv 55)uypxrz yn r)d15ircuit 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 lyr5d5 z nd5sy,xrp51y)yvu)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-3ley7 de 6vbp. The three bulbs 1, 2, and 3 - represented as resistors in t3l - ybe6de7vphe 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 eo5uq ha1uix.zns- w26lectrical circuit at the right. If the current in all three resistors is equal.x6h-quz21nuwa s5io , 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 composed of 0s cixw6mc9zwn 6ik d,8eo)8 a5 identical light bulbs ai,9xd ws ace wz88n om0ci6k)6nd 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 following statements is NOT true conod,y)qqy u4 a6cerning the simple circuit shown where resistory dayu)o,q6 q4s 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. Bulb X is:xj z+7n up j+.te fbe+( jn:qz,9b.4mknq dzi brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in para(.i j ,n eznud+zx:je9jft7.m+:k4npqzq b b+ llel 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 shcnnj:54gmvtfz9xjk) 03o )through the identified resistor in 5 seconds once the ci) n :jkz3tvfoj0mx5c9 hn) g4srcuit 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 l7p rt9.pd :b, 8jzzgv resistors in the following simple circuit have the same resistance, 8gj.ztv9z7l d,:rpbpwhich 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 co(9zpxg aek 6uk./(h. k o4zmdurrent through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage Vx(ukpo/km 9e.a d4z.ko6 (gzh?


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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 ba x n9am7dy(v/p (+hiwdttery. Suppose R1 carries a current of 2.0 A, R2 has a/hiadvnwd 7yp( (+m x9 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, R2 andR3 are connected in parallel to a qguxrr *.x,t 44+q tnb zipf.2battery. Suppose R1 hb.gn4i. f+trzx4 2r,xq*qt upas 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 volts. What is the maxiq;,a -km1 i vjhuf))df4h+y dhmum value id4 j),uvayh)1hh-fk;+d mqf of the current 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 r ( 1bc3c*6xefzknp-svesistance of a 60 watt lightbulb designed to operate at 120 volts?zn 1k*be3s pvxcf6c-(

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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 f+ip. /n oilk0xlows through a 4 ohm resistor that is dissipating 36 wakni.0pi o/ +xltts 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 u ,vq*l9m pf: yhzx3ds0)hmgj-sed to press clothes is marked "120 volt, 600 watt.” In normal us0:x,gl )dz h9hm*sq-pjvymf3e, 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 produced by a circuit shm 9.g;3dkxnd cyq+1containing only three identical 6Ωx nd.cqh ;9smyd +3kg1 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.ck ;few*ieob.6o 8o )2gt ir;c Which of the following equivalent resistances CANNOT be produced using all three resis o ;8 )ocetk.rwgeb;oc if62i*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 different values can be ci 5pc2cig/ czjk9 +. yh7nut,gonnected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can bi p9ct/hu 7+ z,jcgc.yni k2g5e 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 resisj o8 ,1+dz/by/ djqobhozv)l/tor is connected to a battery, a total 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 internalo///b,zj +1do hzjyqbv8 o)dl 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, haviiptoh-0ci++c;l kd n) ng resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances+p-)ii+hk ;0cnl odtc 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 4(3:dtpxydr r/o pe( vresistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of wa yrr tx/4v e(:3d(ppodter 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 dissipating 36 w,l/ y zladuc3;ag8f kwy*y )lu rpxebb 82(t78atts ,du/plk)y3 w ufa2 88t78gcye*xa(bly;bz r lof 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 connectew/y5x2*tjlt*am jgvoqigg z t. ;g.8k*n3 j0fd to 120 volts. If the price of elecmjajfg3* 2z*xnv5.lgt y;0tg it/w8 g*qk.jotricity 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 ks7akk k9i7 -vkeep a 100W lightbulb lit continuok-v77kakik9 s usly 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 qs-*m-4 xqk -f y(yv,n ffba4rt)w,. ae fpl5aA through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents thf ymkr,-l,fqa4wn)5fe- 4xt v . -byf*spaaq(e 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 44q mj: s dpveelt /k1nr4ml;oq6/r3hfamily of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a ol p ld tvm4 s j/r63eq1r/km4n4he:;qsingle circuit protected by a 20 ampere fuse, 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 connected6.aq pgzedkfs-a0af+p porgu,919 3c to four resistors to form a simple circuit as shown to the right. dpgo0kzr u6 + .aa e-ffcsq3,9g1ap9p
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 n12 vtv geyo75ye k7*zconnected to four resistors to form a simple circuit as shown to the rigtyvo*egykzn7 e v2571ht.
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 ii :s c+by+9mv,qm*0 t6um,m pq8 eagrwdeal ammeter, a switch and three resistors are connected as s:a+g9te u,qmi msy mv,m6+cpq* b08rw hown. 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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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 res0z2kgn t rz5;zistors are connected as shown. With 025g tnzkzzr;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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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, an qgt2/ha tsr xk9 /ko( xu16ajwr*5;y switch and three resistors are connected as shown s1xk hyun(gkrat; aw2/xq5o9/6r *j t. 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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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+jv.0 a.do t-.iwbcqlr+bxr : equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, x.qjr.l wo :ra+0. t+-bv cdbi 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 wiwy-wgbaw+z 5-g ve09*0vffwkth resistance-bv+y*0-afwz5wg 0f wgw ev9ks $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 conli 9+f7o fj pyw9(tdt;nected in a combination series and parallel circuit to a j9d9 ti7p;+ofyf lw(tvoltage 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 resistorsl xy .81)o 761igw ah0lzv9t ibpe-laf connected in a combination series and parallel circuit to a vz1f1 x8oe9i7laa v6 y bip0 h)-.ltlgwoltage 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 the bulbs are iden -5 ac2p,9d,3 q-ysiuaucuysp tical. Which bulb will be the briuuai9,-3 yc 2,c5 dpyasqup-s ghtest?


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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 three1 pfv45lohw+x resistors are connected as o p+h1 l54fxwvshown. 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, 2+ zv 9istxr25o5z zrva switch and three resistors are connectedvz i+22tvso9r 5r5zzx 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 aus+pytn w( *d ale(/s8re connected a8 d*elnpy(( tw+u/ss as shown. 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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