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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 in th8j p7(hyr1 tdrkg/ +mhe metal resistor connected to the battery. Which one of the following choices best describes the direph+r1j (th/7ryg8m dkction of electron 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 parallel, the_____:nv.o sgjdkw* e+a2 u:____each resistor is :jdawk :+ueg2on.* svthe 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 wi-xdhnrov4zh lie5r+ og1k: h-7e62wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This hv+2 6hkixhew:n74hroz d- go1 lei5- rappens 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 repla)f7fete .o 3g k/ rux(jfm/n9eced with LEDs. LED is the acrj rkf3 o/./e)7 u x(e9emtfnfgonym for 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 cross-sectional area);q nu8)( xgh/x sugel 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 resistivity of the xl()unu q8 gxhges/); 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 arezm;az he0-v7tk t g9f3 made of the same material. Wire II has twice the diametezg0ekt7 zh;tm afv3 9-r 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 material but has twice the dctlu5fogi p9 629c kf0iameter and half the length of wire X. If wire X has a resckiufpl9gc 0tfo 2965 istance 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 resie .swv*m euo1 k)tgm4 +/lnbn6stor 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 material because of this pene/l+nuk*4 .v 1ts6wmomg )brocess?

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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 br/em v9/p eyt8 .hienhi9,8 vaiighter light bulb. He decides to modify the filament. How should ae9t/9y8 inhvm8i .i/,ephve 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 length b np2gn/+b k*)p-y j/pyzsw2oandpg/n)+ s/*b2ywj-p zkyp2obn radius 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 t8k1uoectywgc ))r0ix o,e s6)o a battery in the following way: “Two resistors are connected in series. This combination of two resistorgc e 06uw)cix1y ok)r8 )so,ets 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 :6/fzvddqm ziikdbrw) :z+16 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 most nearly: 1dqd+d bw) 6zv:6m izrz/fki:


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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 circui -, vf0q/p2pvcvb*rcr t shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the dfvpb* q/r,c2rv cp- 0viagram
- 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 elwg0nn+s-6*zal/r ku x9ry av (tmsd7d/m +sg8ectrical circuit at the right. If the current in all three resistors is equal, which of 9 /nm/n+ rsk6u g a*sw r-sx dml+8(yg7avtdz0the 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 rklg7r ;ig k re:kq;7:u x2ko1vight represents a simple electric circuit composed of 5 identical 77q kuvkr:irgk;;: x2 oke g1llight 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) vaebpi a* 31pws)fu: true concerning the simple circuit shown where resistors )pv*uw3fsiaabp :)1 eR1, 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 h f :jn9f(l uk)w9sq4uX andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. fn ul(f:sqj9 )uwhk94 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 co 4hu)w .fguext wlq/rfq +h 4a)y)/yz)ulombs will pass through the identified resistor in 5 seconds o. qlz)y/r4e ua+))ftwxghfqu4hy/)w nce 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 thew me3blj1j 4n+j1b f+km7zy3n resistors in the following simple circuit have the same resista+3 1zlmnj jkewmby14bj7f n3+ nce, 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 through 31 l(0lo q lebncuz8gb m52xd.m l;/yathe 6.0 Ω resistor is 1.0 A. What is the power 0agbl mxnq 385/2c lde zymu1lbo(;l .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 connected in seriobsks70t .ny1 es 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 voltoy7s0snk . tb1age 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 auq5+j-scmmt,s9 wm0(zhcecje4+ c/ fndR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. W,hj5wcc +st m cmz+s/f umj q(04c-e9ehat 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 maximuuli5i/s /kf;0 ikdw(mm value of the current 5dwsmi/iu;0fik /(l kunder 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 120 6z.tor2iy+l i volts?otz.yri2l6 i+

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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 disj c5g t*yz*s7fsipating 36 watts o s*cy5g* fj7ztf 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 uoh2gzui3w 8s58cp aa e i)u2-hsed to press clothes is marked "120 volt, 600 watt.” In normal use, tia whg8s8a zi2e- ouchu2p53)he 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 f 0,)xc8ktf s; h+dowpbe produced by a circuit containing only three identipfwxt 8+,k) ofdhs0 c;cal 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 threeza ly1-t7e k77 1v-mzszxua p* 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be prodk1 77uex*v -z7z-ztlm sapya1uced 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 diyjn62/avl6 9lz2,n rba .timtfferent values can be connected together in different configurations. If all three resistors are used in a circuit, how many differen2m 9lynjzlvb.i,at ta2/r 6n6t 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 total power P iy-.yqo5 3dk dts dissipated in the circuit. How much total power is dissipa.5 qdtd3ok yy-ted 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,xtz-v5 -lr5t y are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of-5ttz l- vxyr5 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 resistance b(/g9egt k48pdat, pbof 12Ω when operating at 120 voltst8b,9ged(t abppk/g 4 . What is the 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 p 5ppew*owi 1 1e(r1rlthrough a 4 ohm resistor that is dissipating 36 watts of poe l(r11e1ip*pr5w w 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 whee2+rh0 ff)l/olb ar; nn connected to 120 volts.alflh)f; +n/e r20br o 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 would5t6gih v/d z2r it cost to keep a 100W lightbulb lit continuously for 1 year at a ratedvt6r5igh z/2 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 pmm-6x j do6.p0dhcu b)1ics segi/g89ower of 24.0 W associated with the bulb. Which one of the following choices best repres 0g.m9 18umhgjox-6e /idsccd i)6pbsents 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 rated at 500 wattsdy2r yus;rlp.7 c+b, .8sj nhd in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum 72+hjpyr.srn, sbc;d8 dl uy.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 four resisv553z zp zd .j xkct-46z;gamptors to form a simple circuit as shown to th6;xvz5z4tjcg -5z3ppak.m z de 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 to foua5kn au/t)8lpo:+ 4-liv nxl sr resistors to form a simple circuit as slo/4 kxpan8l -) i+ta5lnvs :uhown 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 resistors are connlnlo;sdh1.ux8os0 )yected as shown. With the olh)x.onul 80sd1y;s 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 iua*n5b1rb ;m.oii ) 5uy* ausll2b3l sdeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2u s1bab.*m2 )5aorl 5nuuiy*lbs3li ;.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 c ptu nff.jp+7.z2v rmfum:3wv.v lw3:onnezw.utv3 vw 3 mj:f :u2+.mrppfnv7lf.cted 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 right, what is the equivalep.y(v2gf7ea ( dgo+apnt resistance? Assume that all wires are ideal, the battery has no internal resistance, and all thr27 (pygap dvof+a .eg(ee 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 j2pjxl)sdu ag//80(jzgn u wk)jq71h with resi20gxu(ju)7n)wjzd8/1hsj k a lqpj / gstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resqgdzj2z,2g,xz )mdm( istors connected in a combination series and parallel circuit to a volta gj zq,zmd2g2)d, (xzmge 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 shks8/zpw lq: w u1mee7pxw);st -ql 14qows five identical resistors connected in a combination series and para1 l 7ew -msw)14uxe p/qzwtqkpl8;qs :llel 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;d *-fk op+2a3nsr+b/ 2tku km1yp uvh the bulbs are identical. Which bulb will be the brighroh1 2 ukfp 2*a b/3tpd+mv;ky-+su nktest?


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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 thr-ctjx +f+qdf8walv5y 5a/z )lee resistors are connected as shown. With the switch open as shown in the diagramw+jq 5f5-a)d8zxy a+tf ll /cv 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 are coor.8 gabji-5;0v z6g0oj a chdnnected as shown. With the switch oc o0.6-h 5;vjg rdz0ij8 aboagpen 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 tht-gh zh44jcx dk3-6xk ree resistors are connected as -64zh g -k xtxhdjc4k3shown. 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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