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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 bx: t738b ./bwiftnpzexists 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 the electric field through the interior of the resifn/bzwx:t3 8 p ib7.btstor?


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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 3h 7irv4) ebni,qu22uw vj7taresistors are connected in parallel, the_________each resisr7,ubv 7vi4 )j3 qtaeh 2w2inutor 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 lightbulb causes the filame (oc,fknvlf +)nt to become white hot, while the larger wires connected to the lightbul)flc+ o n,(vfkb 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 m ;u4u 80dwqodmmn--hhold lights are being replaced with LEDs. LED is the acronym for n4uw;0uq hd-mm8 dom -which 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 cro1xmk19 g .)nq obh)j bsddpt*)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 md1 b pb)oh)* t.9gnxqj1d)sknew 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. Wi4yw0 cio mj(q;re II has twice the diameter and twice the length of I. If I has resistance R, II ha iq;w jmoc0(y4s 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 d us0-: zzob8kvw d0+g0+b dcgbut has twice the diameter and half the length of wire X. If wire X has a resista- 00g uc+b b8dsdv gzz:+d0woknce 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 re)gd yaa z25ok+sistor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this materi d)+y2k 5aaozgal 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 Edt0rmkwgqe ,(wpr f).4xh 4l +tison wants to make a brighter 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 .t (g l hft44) pkxre0,rwm+wqlight 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 alw eof/(s6 xdb,nqt)yta+d.xr . *i 0cre made of the same material. The length and radius of(0n +bq fdx*diseolcty t 6)xr,. /aw. 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 to --o jn e7bwuqn *q,b;mtab*h8a battery in the following way: “Two 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.” Wn e*bqb7u ;t-wh8m na,qjb -*ohat 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 accompany (ne;ek*-sjd1f1q/wtxd j p+ping circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 e+jkp1 pf d;tj1x*(dn/s- weqmA. 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 cir ;fli -x 6n (vik2vm(skuxnk7;cuit shown to the right. The three bulbs 1, 2, and 3 - represented as re; 2-knkni; fkl xx 6u(s7(vimvsistors 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. Id-o skxabck8f6c: (p0f the current in all three resistors is equal, which of th x-8:dsk(boak p 6cfc0e 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 repres64wz/ b:np g v 7nqecm1i3nle(ents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs 47i n:e gnwbz6v/cp1 m(el3nq)
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 simple8yoi or*hy .p(y*fd 2r circuit shown where resistors R1, R2 and R3 are have equal resistanr2r *f*p y.(ydoioh y8ces?


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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 brijvpij b gn 6p*sqdjgc3 h -6l2wnf114/ghter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in p6qgh2 jn j1f/*blnv4g61wp3sp c-dj iarallel 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 through the identified resistor 6g9lfdv3 or3 cin 5 seconds once the circuit 9fo63 v 3grcldwas 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 simple circuit have the s1t9lddg xxg,1i 2s:c fame resistance, which would dissipate the great td9c2g1 1l,s:xfid xgest 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 currentyhy k-(yrp 9i t5/2 tv+bkp ennt)i51n through the 6.0 Ω resisttp5n 5k- i rtpy91inn2v/()b ht kyye+or is 1.0 A. What 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 resistore0pl5kf wo31od )s 3fd/u wxw(s R1, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0d1o5w) fwdl3sue/o0f wpx( 3k 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 q :xctoq1 m-w3R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates -:wtmx13 qocq 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 ancr ;*+d;pziew d 120 volts. What is the maximum value of the current under these c ;w+i*cr;zpdeonditions?

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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 rg .jpcde ;0f)bue r nwyc*0fbit9b/.) esistance of a 60 watt lightbulb designed to operate at 120 p9d0cnrbfu .iy tb;g*f.bjewe )/c0) 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 flowcvm5jj- :4tjy 6dz sf+s through a 4 ohm resistor that is dissipating 36 watts of powdf45 :j-j+jv ymzt sc6er?

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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 muq:oc2g:se83 x+w gkxjx:o; rarked "120 volt, 600 watt.” In normal use, the current in it i 8x:ugsc 2;xjow +:gekroq3x :s

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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 cout8zbvq9*2na6gn5v f zld NOT be produced by a circuit containing vt8* v96zz5n2bfq gan 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 resistors. Which of the following equivalenaz:7k z.s7-v vgo)kh3.r5ti a x,bendt resistances CANNOT be produced using allrz).vg-xv:da kn b kei7oz h7t ,s.a53 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 valueskn5 e vr38q/4oq y p(hmm)h9dh 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 pro 4evyh)pr3kohq5m /q9dn8 hm (duced?

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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 resisto-uoksa t8p-bag8k/ql yslr i)98f-k 4r is connected to a battery, a total power P is dissipated in the circus)9o4-/ pll skauf-r8ayq t-g 8b8kikit. How much 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, having resistance R1 an e-y-e-xa .)2d/rgsyerhb n,t d R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which oe,x.yhen edyg2)/s- -r-t braf 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 resish dl(caab;+qe pt 1+e*ix)3gytance of 12Ω when operating at 120 volts. What is g e;a 1b+ (y*xiqp+)dct3e halthe minimum amount 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 4 ohm run2 3ts7jn1x0g-oqnbw m uq/.esistor that is dissipating 36 watts oft7/1uq.03xg-n m b n2uwjqson 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 heat6gm - 5a,s. ttutijl3wer draws 13 amperes of current when connected to 120 voltstaig3.jt m6s-, t wl5u. If the 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 l,v6m ufpp vq;-u1g i5y ,m7oxxit continuously for 1 y;py7 gxpvo miv5u mxq1, -6,fuear 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..ba6bbgtahsex (o0 e66s te)0em6g i,00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following o eai666ttgmeebb,sas.g( 00 beh6) xchoices 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 a computer 6onlu),5-d ul ke+nrurated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20n 6l)uk+-5, durnoelu 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 connected to fr2h p,4g4osh b3*nyj tour resistors to form a simple circuit as shown to the right.rbhp tn4 2j4hg*o,y 3s
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 iq2m)kzhp mpz6bdu ac9: l zs *pp62m/1s connected to four resistors to form a simple circuit as shown to the ap pkz m/1hz6d9m6ppumz2s2c *)b :lq 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 dr;x *q,nr6idj2gwb*switch and three resistors are connected;6xndwr * 2q*g id,rjb as 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideo ,mvmncr7 8;qal ammeter, a switch and three resistors are connected mm;, 8vqon r7cas 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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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 thre ,be*7 rvnr2gte resistors are connected as shown. With the switch open as shown in the diagram the ammeter ,v2reb7 t *ngrreads 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 equivalejr+60kmmy1 t t(omx;k mp1v*k, k, xjwnt resistance? Assume th0xrmmmkk6+pk ttyo jw 1 ,, *mvx1k(j;at all wires are ideal, 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 resistancogo, *tfq8gn2wo,mmi*:kb*m h cgq98e of the circuit shown to the right with resistancicq,mgtw oo:g mf*hg 2*8n8 *qmk,o9bes $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 a combinh5oz 2*)s pzs dd,uxvh t(z/g+ation series and parallel circ)+ sg,pduzhod (5 zx zsv*h2/tuit 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 au4op z9 fk-,vycv0m5wlx8 )n resistors connected in a combinati4yvc axn5k-w9m8) pfu z,lvo0on series 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 (vk95z9: tcxeyqorw rx( 5f(n bulbs are identical. Which bulb will be thez e( otk(5f:q99nrcr v (yxwx5 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-.z4f kvpfq,p j7*k to and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amqf . p,-47ojk*zv pkftperes.
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, e94nxxle/69tlgv n5d f e4ubi q+0dg-a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter xxbg/4tdgq4-l +ive96f n 5el e9d u0nreads 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+zixh(6 iww ljrj( qj) qp.0t6, an ideal ammeter, a switch and three resistors are conntqii h j6jxwp0jq.lrz +w(6( )ected 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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