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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 exiso agmgd78a )a .c,nk)ots in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resist)c8ogaa dko a),.n7gmor 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:*jlb/e/p+ bd/e j pew resistors are connected in parallel, the_________each resistor is the same.wejdp:b+e /be*/ljp /

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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 . 6+ :9x,hexuac vukeoa lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This hap.hv axc 9keue:6u,ox+ pens 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 LEDsli7l55 2vg dnl*); *hx mnfrpk. LED is the acronym for which one of the followi* gl*rxn i d5 p7)ll;hv2knf5mng 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 hgf 7hgokw uwgd5 / r87w4n9oq2as length L and cross-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 old resistivitno gw ghk/u29r57f7 oqwg8d4w y 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 has twice d(ty*smbr:.3 hel 9ku the diameter and twice the length of I. Iflm :ht d*bu3y(9rs ek. 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 the same material but has twicee32c9oremvd* j) ew c8 the diameter and half the length of wire X. Ifwcec* 93ovre2)j me 8d 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 1,*n4 vpi/ qrfw k+wjulength L and radius r. This piece of material is then drawn so that1 p iw,fk/n+4r*vujqw it is a cylinder with new length 2L. What happens to the resistance 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 a9iv-2l :saqgg brighter light bulb. He decides to modify the filament.:2g svgila-9q How should the 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 material. The le6pj4qk; vriax:dw (d1olg* .angth and rrddv:x*o(kw6ija ; lp q 4g.a1adius 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, each of resistance R, are connected to3z w zpo0tmlg6.xw u:+*fack ghg9p36 a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in pg9l: + xwf og6zwautp3z.m6k *hpg c03arallel 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 diagram has internal resistancezfgz1- zc c(c9nes) e- 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most nearnfzs 1ezce-z(c-c g9)ly:


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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 gr*zf(xjakum, 57(hkright. The three bulbs 1, 2, and 3 - hzg 5a(u7x*(mrf, kkjrepresented 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 electvdpo+ dobuv,o2wdl y*f i/q365-/ep hrical circuit at the right. If the current in all three resistors e u +v3q,b*/pvo5hi low2yddo /fd -p6is equal, 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 -wbr z- xxz cu80nlu9,uwe88ba simple electric circuit composed of 5 identical lu 8rbc- 8 nz- ,lx90xu8euzwwbight bulbs and 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 concerning the sii-qh.t 2rcl- pj zv-7)pd:gtmmple circuit shown where resistors R1, R2 and R3 are have equal resistanceslp- jh2id-z )7r g.qc:mptv- t?


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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 av6odurml8 ub. b 79v+nndY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the same 6drvou ml+. 9n b78uvbbattery, 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 through qptao-w61 *ckqj :yp 5the identified resistor in 5 secj pqa q-o wt6k:c51yp*onds once the 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 icpc/. clv0*1 .y 0pybab;bbcin the following simple circuit have the same resistance, whi;b0/c0 bp * al ccvybb.ic.p1ych 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 through the 6.0 2rxrw;s o-6*4j qnijf Ω resistor is 1.0 A. Whqr wi rjo2n;6f4x *js-at 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 resistor xjbn un--c6h0s R1, R2, and R3 are 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.x-jn0b hc-n 6u0 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 para1.zsq 9enn j3ollel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is th1qz93j sne.one 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 12ec aje099 ;ni q kcbtq5a(/dvry l9,q200 watts and 120 volts. What is the maximum value of the current unde 2 ,9tq(vakcdyc0qe5; 99rb/eqjnil ar 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 wa:x20nt0 p vfcwtt lightbulb designed to operate at 120 vo020ntf x w:pcvlts?

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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 dkioyr:*bgat.v.0 0ml(pl 9eg 36 wa*dgb.:i.9 l0 mkvelray tp0( otts 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 mu)r il4i snmk ulj(*(2arked "120 volt, 600 watt.” In normal use, the current in it isj)iun u42 *il(ml (rsk

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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 circui*uve0h a/dfa52ubg ;qt containing only thrq5bvua; h2 0a /fgdu*eee 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 resistors. Which of the followi,kldi f4m 4e(wng equivalent resistances CANNOT be produced using all threfle,mi( k d44we 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 l350pgs)q lg3 ja2l jrdifferent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total res ajg0lr25sj3g3p qll)istance 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 t6:ncfgyj f. bs (z520y txgm5dotal power P is dissipated in the circuit. How much total power is dissipa5mbnf j .zggc6(f0:s 5dx2ytyted 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, are connected in paracf(fl jehta haih e+i:2sc:ze0(f5e 03 9ce3s llel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the rsi3ef:cfi jtc hleae+ e2:s 5 e0zah (0cf3h9(esistances 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 smlw(3,**fn ;f fvtu s dcbuu94uch that 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 kglfmd * n4ftu *vb;(c39fs ,uwu 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 flooa - z+/w9+p qkcjy)hews through a 4 ohm resistor that is dissipating 36 watts ofjyhz p+ak)-w coe9q +/ 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 hn6 a gp(iu6np2xziz5t *;g1h ceater draws 13 amperes of current when connected to 120 volts. If theipp(6u *h ncz;52ngzgi6t ax1 price 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 keep a 100W lightbulb l9(imjj fdp*0tit continuously for 1 year ajtf0ji *(pmd9 t 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 throu0 n uoj*o*jvl/iv mf8i,6shqf -zf )7agh a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lfq/v-ljnas omi)jho*i f 8f*zv6 0, u7ightbulb?

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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 rated at t20: rbz +gtagw5ex1;xe gj 5v500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is 5x2b;tg0ex5 1w v+ :zagjtgrethe 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 batter;.s:t.dn 36gh2 w)biint mfl ey is connected to four resistors to form a simple circuit as shi h.:t t.3fswm)nen 26libg;down 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 + g)x,uq5 +qz+k/uzeg jdih/fconnected to four resistors to form a simple circuit as shown to the right/uk)id+qhq ,f/zx5g+e jgu+ z.
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 conet5y. l+q+ haknected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 +thk5eayq.l +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 ammetuliu3 oyjs2/ke*c-ks:,-lms er, a switch and three resistors are connected as shown. With the switch open as shown in the diagram :lski2*jl, ys3- oe-/smu cuk 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 ammetewy* qv h3u3lv-q ;ab.b fwgw20r, a switch and three resistors are connecte ybb*0.v3;wfq qvw-ug2l 3wh ad 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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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 r(wg+m7k9hu pj sos4tf6twuse2c9a- +ight, what is the equivalent resistance? Assume that all wires are ideal, the batteryec j(9ks4gwoa7fh9ut+s u sm -tw 2p6+ 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 resistance of the circuit shown to the right wir:-31i/d dgfrsq we 0cth resistances1ircf/dd 3:resw g0q- $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 d27kbzkf 7/aoidentical resistors connected in a combination series and parallel circuit77d2fo kab/zk 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 showd1+7mih g4y,k2kt s /c irv,sms five identical resistors connected in a combination series and parallel circu v,tr2kig4+1/m sds,mh kyc7i it 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 euz4 yc+2dxpnd(q:m3gh 0 r,tidentical. Which bulb will be theumt3 q d2+gy pd:rcx0h(e,zn4 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 switch and three resistors are con-qp r3k 4mat 1x(8ek:n)uuw ggyis.+onected as s8( g3-ku:opr e4i. w1+aknuyg xsqtm)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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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 three resistorlahs::)d34q.d0yz f j9qyepcvpl* (b q+ wo;r s are connected as shown. With the switch open as shown in the diagram thec: ) lq+ .;4hlfvdwsz 9yyejbpqp:dro30(qa* 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 thre gg,lz vf6 ,2;v+4wmhscxn7 9ro csag,e resistors are connected aszc a7, r9;4,gsvhfvg +w sox2,m6cgln 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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