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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 el ru s, ekn*uv5vr12fq7ectric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow ,*ru nu75sq k2rvv1e fthrough 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 resc:o0z gf5j m0-t3gjpns6e +svistors are connected in parallel, the_________each resistor is the sams zcnm6g5j0g:3+eo tpvf0 s-je.

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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 fila;o u34qi 7whz smwas6vp (t./vment wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becamq(t4zo v.3ha6us wspv i ;/w7use

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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 househoa f9+ngiazss d+vjmba : 7gbe++ 3e4/a,*aavzld lights are being replaced with LEDs. LED is the acronym f/*:ma3b7ie,9be +jas za+4vzng +fa+ agsvdaor 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 h 9zz+p cmt,h4l3c rgk(as 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 resistivity of k 3t ,(rzzmcl 9ch4+gpthe 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 sameg nd3ued,k, u. material. Wire II has twice the diameter and twice the length of I. If I has resist.,ud,u3gd k enance 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 sameqsix 5;;6i baw -:rd k7r(amdi 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 have a resw-7qx i(dbia;i5 sr:;rm6da k istance 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 lenz*j-; dtfdy g6gth 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 proce6ddz;-yg jf* tss?

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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 brqpf i;19+yqkq ighter 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 ligh kpqyq9q;f1+ it 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 resiqoi2d f4v31pzy)zgv1stors are made of the same material. The length and radius of each re14fv i p)o3zgydvzq12sistor 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 resistyq)1:-qh7irck3e gnip g0m v i/pwfpq, 43 qa4ance R, are 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 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 y441nvh agq3f) m3e,k07/gipqr ppc:-qiiwq?

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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 circuivpgmd,r)*ad148 b/ r n,neq:gwp i.ngt diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmgnda /8,dwvb4 r:np ,eg1rq)mp. ngi*eter 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 trbbhim 4p+ k3/x-dek2he right. The three bulbs 1, 2, aeh2p3 +rbkidxm-k/ 4b nd 3 - represented 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 ewo)/idcv (xl.f .z x3ilectrical circuit at the right. If the current in all three resist zldc(3/xxw) .iv. foiors is 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 a simple electric circuit cd* d 7kqycu;/etzv) nibo:q5+omposed of 5 identical lighoq7;vdzkqd 5ynci )+*bu :e t/t 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 foll)fxuf .-ezkbg z.*3 yqowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have -xfzu).yze*q3bfg k . 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 conv:8( w -8sj w0fvc1arfs en(ktnected 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 sam1(:8ss8ve(kcwv fntr0jaf - we 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 pa,ytot6u0zvxe 2 ul*j)ss through the identified resistor in 5 seconds oncu )* xj6zyo,tvtlu0e2 e 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 the following yfvn7a655q cve6aezmi. 7xu:simple circuit have the same resistance, which would dissipate yv66mvxe 5775fa.:q uanizecthe 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 a7aco ;3jx6i81egpe: hp. ktjcurrent through the 6.0 Ω resistor is 1.0 A: aio h6eagkxjp1.ejp 37c;8t . 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 resistors R1, R2, and R3 are connected in series to ;u4e mpm2)kaw;w zk9 sa 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 acreumkkzww 4a ;;9)p m2soss 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 connec:0j0gzaeugiwf;t7 ,6sf d + cmted in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipaaw6z 0e7j gsg i; :cmf,f0u+tdtes 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 12naom ;pq4za4)bti*ux g+v)p3 0 volts. What is the maximum value of the current under these cq *4);xgb p)ito 4n+ma upa3vzonditions?

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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 light:6 fac5suhsx. + b:2faey,tcp bulb designed to operate at 120 vo af:ca+ phf s,.62u eybx5tc:slts?

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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 dissipatiho;t yz r+ vs4yx7r3 ,psa dbsw/rd565ng 36 watts of power?dsrt ,5; a4xrhsw3rd7/pobv+5 s zy6y

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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.” nbdvx r5/c6:j)s+ug vIn normal5:v / bx)gc6vujn+sdr use, 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 s4 9ln9qeapap z5a5p)d8ix t3be produced by a circuit containing only thre8t)p5pa l i9snpaq9xz35a4e d e 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 thf/6 3*ugffmlv v33w agree 1.0 Ω resistors. Which of the following equivalent resisg a m3ufgff v/l6vw3*3tances CANNOT 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 connected together in diffdk0 fwy53kssoad)3 )terent configurations. If all three resistors ar)ksf5d t33wkad) oy 0se used in a circuit, how many 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 batterk6q 49nxfp,n5s, 8splw* dqaxy, a total power P is dissipated in the circuit. 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 o5d wpqpf9 x,6 n4,ssx*lkq an8f 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, hjaco2 m1y 8u 9o/fa0daaving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements aba u9fd j0a8/12yacomoout 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 tha.,a8 4avem7c9z svuc rt it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that iv caurs9cv,ae8 .4mz7t 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 resistor that is dis(v-sra3 ozd3k ur4i)w7jtx+ osipating 36 watts of rj wvkod ro3 +ix(u3-taz)47spower?

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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 hd jm iw3 6 a,c kc9madfq:3fi3kl95/kaeater draws 13 amperes of current when connected to 120 volts. If the c9dmimk5 i faj3ka6:3 9qlcf ad/3,wk 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 li :v ai0ph+ntk8* 2cuko cnr2)wt continuouslnv c*2h: tk0 pnucoi8a) k+rw2y for 1 year 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 yo+2 lcl;2qo wpower of 24.0 W associated with th oowy+;22lqc le bulb. Which one of the following choices 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 fae2bn*ctbzn** k :w16gfooyr 2mily of six owns a computer rated 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 numbe6 2:orzbo **c*kgen tfwyb2 n1r 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 h 9d*gt6*sphqxzgvj95scr l8mp 3c* 5to four resistors to form a simple circuit axcvcp 3gl5*hqz9*8 9sgmd*j rtsp6 h5 s shown 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 connected to four axen09fzl8h. )x 8soj resistors to form a simple circuit as shown to thzs88afh). 9x j0l enoxe 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 ideali6 am bvz ),qv wdot(q2,ldr*6 ammeter, a switch and three resistors are connected as shown. With the switch open as shown in dziw,la )2*6q trm (,bvdovq6 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 *ceqj +-m(lo;t-uhyl , a switch and three resistors are connected as shown. With the switch open as shown in the diagllhou -ty+q*cj ;e -(mram 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, ax3asszg gwj8 n m+wds /0z2a9xri(r+-n ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown is sz32gmxgd(/x9ajrn0 w-++ar iz8wsn 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 circuit9pir * wx *bqnepy8.y)xkxo3az,g k7ubf /g18 shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistank/ 38epfgy8q9 bo aiuk)y wgx7 x,p*1x*.bzrnce, 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 ci;chgadbh /93t(2 w: yzo(bhk rrcuit shown to the right with resistankyh9hbh 3:;odt /zrg(( 2awbcces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combinu 8y9qwby2gmp+ xnle sc3t7*f5 ;c:gr ation series and parallel circuit to a voltlxc:9f c +*8wq2 gp 3yym5gn 7eus;tbrage 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 resistors connect 9rb6mvvcadl *1(hb ;qi a0,mmed in a combination series and parallel circuit to a voltage 0bimm,c6r bq lma(;hdva9 *1vsource.
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 yc9 fh up7z*4p+dbi wk9,1cbk diagram, all of the bulbs are identical. Which bulb will be thdwc+k *b94ui,bfpkzc9yp h 71 e 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 batteryv1om(s* kdv: a:xn7y h, an ideal ammeter, a switch and three resistors are connecyk( dxam :oh*71v sn:vted 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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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 conf..dn0 jw(a : k(cfybinected as sho ( .ai(dbfyf:njck w.0wn. 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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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 resi;5 a .8wh c e8pi)xmh9ddpgrd+stors are connected as shown. With the sw 9d+w;ei.)d8 8pac xdmp5 rghhitch 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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