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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 shownz3wuevahv.;chg a 0e8s69mfx ko1,.t , 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 the ele fh10a9 ; vvt.3,hgk aouz. ec8wmsx6ectric 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 connecty5*awe+ncnl 1 ed in parallel, the_________each resistwecny5 1a *nl+or 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 filamenbdyp yex,i512n rm52it wire of a lightbulb causes the filament to become white hot, while the larger wires 2 pydii25,5x mre1ynb 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. LE9k7 *s)uc(tsu*hjo*im lik . sD is the acronym for which one of th9lu*c* .s*(iimu7ktk)o sjshe 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 grp /j0w7+kv hg 76zwspfaphite resistor has 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 zjv/h g ps0767pwkwf+ 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.chpjq,d78vi+*s9 wroz(; n jc ; huc5a Wire II has twice the diaz i785vd n9;ru(;q*c swco+j p,hh jcameter and twice 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 the same mathma, kuf7ur0. erial but has twice the diameter and half the length of wire X. If wire X has a resistance of R the k hm7u.r,0afun 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 lelavi1 4ydrhvw/z5-l8brx,:4mg + zk a ngth 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 resistan,wr 45z ylvid1+- 8lgv/maha:xrk4bzce 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 a brighter lim;curys8;vsf -bd ,q;ght bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order submr;yd8sc v,-;qf ; 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 5251xg2fkfnjodsur9q)b u3 g made of the same material. The length and radius of each resif35 5 b)nuu2gx k9soq1jf2rgdstor 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, arm)/ kc+lw qn,le connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resis lm+q wn)klc/,tor. 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 cz 8f()fbkc2 6 7f5foppsh 10v.1aq*xk jabageircuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The volz6g7a*fv 12 p s5.oa8kfea)j x (kqhpfbb01c ftmeter 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 circuit shown to the right. Th bt71.; -pkd 79dopiv)mxyyg we three bulbs 1, 2, and 3 - represented bgyy7k vxt p;197dmi-.o)dwp 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 at the right. un8zb;jl,plb.82l ch If the current in all three resistors is equal, which of the following bp8uh2 b8l;z.cllj n,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 fcec: dov8 i lky1*m;-right represents a simple electric circuit composed of 5 identical light bulbs and 2 flasi1eym -vdo kcc*8lf:;hlight 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 fmdszz1o3s5j5l *z2 xtollowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal rz1tomxs5 3 5zz s*2ldjesistances?


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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.f pw t8 gnaxb92-c2s ,b;2iqdm Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. 29atsfb ,x-2gq82nb pcd im;w 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 pa5 zi sao7) g t96vqc(hk+cwrl .;3mxwe,usnw*ss through the identified resistor in 5)ceo;9 7nw+x6i r w5 (m ltwzgu3qs,vkshc. a* seconds 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 in t+3fsmwx*ng gbtz9 d6x a( 05rkhe following simple circuit have the same resistance, which would dissipate the greatest power? 6mf0z ds(brx5kg+ x9aw3 n*gt


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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 fx6ik ,b9az j4u5+l m pzq6u(pvvw8g:o (nro3Ω resistor is 1.0 A. What is the power supply voltage 65xg (:i8+m(fu6rq o kjw lv3b,zv p9opu4zanV?


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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, hm5 z7yxhp vi6gj7*1r8j5toz 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 6.0 W of power. What is the voltage acrox7 h1i5thg*oz rpj58 mz 7y6jvss 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,bxr9sz1d.t t)mk 0go + R2 andR3 are connected in parallel to a batter rxbk+zts go.9)0 1dtmy. 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 watte /i5(6jfqw3a 9 gy 3favqc1wds and 120 volts. What is the maximum value of the curry53/ejdfa9q iv fa 1 3(wcw6qgent 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 resistance of a 60 watt lightbulb designed to operate at a))wob+w c4:2rhxiu qkdpjv p-6c.p2120 voxp2jvd :4i+ap)k2cu. o6pcw )bhq -rwlts?

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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 currea+xn(( qtnq x1nt flows through a 4 ohm resistor that is dissipating 36 watts +t(naxq( 1xnqof 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, 600 watt.” 6hhj i:9;8uugzze vi0In normal use, the current uze6;8 :h igi09vhuzjin 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 .rt +,nip e/y:luum5z NOT be produced by a circuit containing only thre:zt5 /re.+iuulmny,pe 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 Ωdge, 8fgo 2+zq8 u7bca resistors. Which of the following equivalent resistances CANNOT be produced using all three resistors?+, o28gq7f zdebua8g c

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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 diffun: e0 /h m1-g2u9anns autd96g03b s6gyzdnyerent values can be connected together in different configurations. If all three resistors are used in a circuit, how my ysn6 z2d0sntm-9/ 3e0gauhn9ng g16:ubuad any different values of total resistance 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 tot -wh /n+4tk,vt ebmt4tal power P is dissipated in the cit,twbkh4v- tme+ t/ 4nrcuit. 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 resistowbhd9.t n.yv/taxkw2.4 b +)r arab xcb)60vbrs, having resistance R1 and R2, are connected in parallel, the equiv)2 ht 0cr)v + 94b6/x yabrb.bwvd. .kabwatnxalent resistance of the combination is 5Ω . Which 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 that it has a resiswy,n f3yr) ke0tance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water from)0y nfk,yr3we $15^{\circ}C$ 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 oh/xfl.k)zm ,r.rwnazq w :q (/kdb6j6bm resistor that is dissipating 36 watts wwadn:(j. . rmbl,/66q)/ z kbxkfrqzof 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 he84e1 ky8q xexfe9)xl hater draws 13 amperes of current when connected to 120 volts. If the price of electri9 )fyxeeex kq xhl4881city 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 muc,b6k7ycgzf m1 8whqank) g4t4h would it cost to keep a 100W lightbulb lit continuously for 1 ye kg4ntza741kb c,w y68g)fh qmar 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 res2je3156 :cqgbkok70mh u gqmrults in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance ooq0r5 hcegm j :k mu17bk2q36gf 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 ra 7ukcyat5 bw74ted 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 thwuka b4y tc577e 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 8/* d 5emx*s o1lxilfvconnected to four resistors to form a simple circuit as shown to the right.l/lis *v1x* xmefo58d
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 batterr c1 8y00nmxlrtes08xy is connected to four resistors to form a simple circuit as shown to thn 0xy s8r8r1ex0mctl0 e 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 resist9q4zl p8 /3jeqly goo(h13nzkors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.gy k3ol(8oe pz/l hq41qzn 9j3
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 switc c8,ce:+zu;gu-abvxw h and three resistors are connected as shown. With the switch open as shown in the du;ua +x8b zwc-,ev g:ciagram 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 three resistors are)by dbqbn3 -0;l3 dkwy connected as shown. With the switch open as shown in the diagram thel n)b30 bdbdqkw y-3y; 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 resi::- n9 ft)all8v zuo.qkd ;szsstance? Assume that all wires are ilfd :v a)sk. luto8s :q9nz-;zdeal, 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 resist9bg4aficb d:;89veu rance of the circuit shown to the right with resistances 9brf;ag :d48ib9ucev $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ip3 fyz;8 -hyukum:b5 1eaj2 dudentical resistors connected in a combination series and parallel circuit to m;1dju:ze5ku -yya 83phu2b fa 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 5 rctza 3t0 .ya/c:q.y9 swvvqidentical resistors connected in a combination. 0.qr5yaqwtv t :3y c/9svcaz 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 circuit5k tes.c1gs k )wj,tet)f: b6h diagram, all of the bulbs are identical. Which bulb will be the sk,):s beftt6ew1 h)gkt.c 5 jbrightest?


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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 resist m3eo92zc:1vshr7 os eors are connected as shown. With the switch openoo:e3hs9r1c e2 7vzsm 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 resistors -vhuyh k5xxf:68jwg/ 08j wneare connected as shown. With the switch open as shown in the diagrx 0ngxw hh8u8j/ -:jw feky56vam 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 resis/ra; m,5ydtpzin.oj p9o( d m9tors are connected as shown. With the switch open as shown in the diagram the amme9o.j ;mitnrym(d, /zpao 9p5dter 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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