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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 inc,ijhf i6 kqm*13z( usezuh;0 the metal resistor connected to the battery. Which one of the following choices best describes the direction of e 3chm;sk(q0j1uzzi 6iuf*h ,e lectron 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 p2obmd) k:p5rr arallel, the_________each resistor is the sa 2kd 5p)ro:mrbme.

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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 lighu j08fz gkf+h e35pm8itbulb causes the filament to become white hot, while the larger wires coni5u mfhz8fp3jk 0g +e8nected 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 beiny0ga eo)56f amsgv,qy +xw is/m39u*ig replaced with LEDs. LED is the acronym for wh60aas)uv ex*m wyo,qi/f5 g9my3 si+gich 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 gradpsg- 78a y, jjadt;/jphite resistor has length L and cross-sectional area A. It is to be placed into a circuit, but i/jas jd-7 8pdgy,tja;t 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 4l/-im shn 9(e f,-wjhnrquojy ml ;8qc*.l-c the same material. Wire II has twice the diameter and twu(h,/o;4 l - -ql8mw-icjecl.*n rfqjhmn9syice the length of I. If I has 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 ycfy;/d:bv/nohu 8( c the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would 8 hy;cn(:ufydob /c v/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 pie pa8l v vq3h7p+jr2+wbce of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this materia vq72jpw+ ab+pl3vh r8l 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 a brighter light bulb. He decic twcu3t2z6 x;des to modify the filament. How should the filament of a lightbulb be modified in23wtxzu6 c;t c 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 o1io0 ( usq /e7chjgw3j5;xz *dk lw.fgf the same material. The length and radius of eachwz/qehs .35;1 xfwod7kcu* ji(l jg g0 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 connectedu(e*s8p+q m )ah)jhm o to a battery in the following way: “Two resistors are connected in series. This combination of two resistojq)h8+eph *(sou m a)mrs 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 acz ;a2f ol.ddqp 7l:i8gcompanying circuit 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 most8;fqz:ol g.i 2la dpd7 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 compwz6omfb)32 zj i ;tfr 5p-cs)lound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as rescz6ftsl2 irm5b3; jf)zo pw-)istors 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 the current in mt *7m,d s- n/erz8 ,3ygrdyzdall three resistors is equal, which of the following statements s,trzm 8g7r/ydd3nm -* d ,eyzmust 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 simplm qoqzar)j nb -s3-b4me0t9tkp 5fr3nq88 +na e electric circuit composed of 5 identical light bulbs and 2 flashlight cells.btebt83 0nsn-krmaz q98m f-qqn 3)o+ 4r pj5a 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 st .se,d mv(efo4atements is NOT true concerning the simple circuit shown where resistors R1, R2 andve( 4moesd,.f 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* m8qj ju5:6b*s bqqsxattery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with x q :uss bq*q6mjb85*jeach 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 ;q6,soel m qxugu0n6ztu, 6k-pass through the identified resistor in 5 seconds once the circegk6-su ;l 0qonq,6u ,txuzm6uit 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 simpd opa,0sv*e2e le circuit have the same resis avdee02p*s,otance, 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 tw,pl4,g je pq4hrough the 6.0 Ω resistor is 1.0 A. What is the power, 4pe,pwl4j qg 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 c27ho w;n/hps8 4qrqs j qbjs(2onnected in series to a battery. Suppose R1 carries a curren 4now(sqrpq2 bj 7s h28;hsj/qt of 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, R2 an x;/mqsq8 .wcodR3 are connected in parallel to a batteo8s. xqw;mqc/ ry. 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 volts. bo1(8cduk oy3d *,+zm q7 bbkr What is the maximum value of the current unde * kcz1o3+o8u(dbbbymq 7,d krr 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 watt 1:mvk 8y.2jssnr bjlref 9:evd6,)n ilightbulb designed to operate at 120 volts?e9bd:, v .i 1rsknfe8l 6jysj2vm:nr )

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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 dissk(q; gz9xrg :sipating 36 watts ofzkg (qx 9g;:sr 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 marked "120 volt,1lh 8ruowe* o58 auix.9a9 cvr 600 watt.” In normal usewr9rc8x evlou8aio5h1a9*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 resistances could NOT be produced by a yro1sxs2pg:2e3b ma: 4hn ch* circuit containing only three identical 6Ω r:smb pxhgc2e3h: o yr1s4an2 *esistors?

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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 resistorsdls . f:pb0 na+pz-yr0i rp)r). Which of the following equivalent resistances CAdr0p0rf+ypl -pan)rz:s b.)iNNOT 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 connected4* yoh6 l ,z;pu8gtzojw(6ibu together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be p u;8*6p6izo (ygot jzblu,hw4roduced?

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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 b / oat75fvne)qfb hln ju60tf9)vg9d5attery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected hfte5al0)ngto )v f9/6jb f5qn9v7duin 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 resbj vckm2g9m98istance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Wh928 9 gjvbmmckich 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 tpg.4ujku;rq w0g, o+ehat it has a resistance of 12Ω when operating at 120 volts. What is the minimum amoun. 4guq,; uwg +0rkejopt 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 cy 4m-9kadoa) 4 ohm resistor that is dissipating 36 watt- myo9daka c)4s of 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 of9aaogt-c mmvt,qrao q6 o+. b5vo009g current when connected to 120 volts. If the pri9ao0,q6b+m ago vo amotvr 09t-g .c5qce 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 to*s )ahs1b7wc x keep a 100W lightbulb lit continuously for 1 yc )ssbxaw*17h ear 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 pox4nzw( epw:wyh*v74b wer of 24.0 W associated with the bulb. Which one of the following choices best represents the resist*(hbw: nz 7wwxeyv4p 4ance 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 computer ratedqcnj 5 -yk7qq6 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 computers can be operating at the sam qjn qyc6k7-q5etime?

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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 resistors to form a simple 6+o we0uk;kcacircuit as shown towkck;0oa 6eu+ 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 tomyh en 0q(vh,lkm8fl*.8ej/p four resistors to form a simple circuit as shown kq.,8vlle m8 *mjeh /yphf0n(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 re 0by 1a zp:ypt)tnsh230z( ictsistors are connected as shown. With the switchsh 2yt0n3:p)10 ( izybzpattc 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 reso hks8slbo794uzx3(y p)bsi)istors are connected as shown. With the switch opxi9 pzl))khssu(4bbs 3 yoo87en 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 batte3q4a2 v kdveyg( y 3)8mqwg5bsry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. sb q kgg v234wvyy()em8da35q
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 equivalenc;n0rvv .v )ys+o;v /8cfxcz(f y0vhc 3 bzd5ct resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three recvcc.v(zxsy)5+ 0zbon v8 /0fd3v rc;; hfcyvsistors 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 s l*f0fp.5lap a9q,e 57qtk p/eq zdht7(*oftof the circuit shown to the right with resfet5ft ,sq 0eadz9(af hq/*77.o kq5p*tp llpistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 conn. sp7s0q.t0eys9v t kpected in a combination series and parallqps.p ss 7etvkt0.90yel 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 resis h teuxobk8 va4+6czq/;otz (7tors connected in a combination serie ouao8z 7+kcqvb x/ht;6t(z4es and 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 diagram, all of the bulbs are identical. Which bubex5 k / u0s2pialjl5:6(vcc tlb will be the bright 0ts/lcl 6bi2cxe5vupk j (5:aest?


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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 arey :+:b(hadg va connected ash:g b:+da v(ay 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 am.c -k;z 0/tqf2e 3cfaz wpdr3qmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeterqda2 / w.33- q 0fre;czfcpktz 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 batt2evxhugvn0ud-/b 1/g j -(osoi+rac:ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram x r:0e/b+ovvoa 1iu h2ugg-j /(ndc-s the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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