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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 the metdl82 kyjnn x- 97ivyxbv+5jnnf)c h,l/k)dd .al resistor connected to the batte8xvyl y)5n/jjxk h2lf+bv,7kdnc9 .d- indn) ry. 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 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_________each resh0u0f ixc21. bs n.: 0gjyb, .,gjm3bjfzvt znistor is the hy jv3fgg,,m1ctz0ub00j.xb ifbsjnn:2.z. 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 ofpj hjh 6 7aq1t9q)arz5 a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. Th76jq51 r) jhpaatz9h qis 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 bein f.r*pprhkf)2 g replaced with LEDs. LED is the acronym for which one of the following c pkrp. )2frfh*hoices?

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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 e(ghz w ox+8zgylb -o7 s;yhv1pb/f69 A. It is to be placed into a circuit, but it first must be cut in half so that the new length is 1// 6b8ep+ lgz-s ; xyoyvfho17zgb9( hw2 L. What is the 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. Wire II has y z50c1 ;twstplcq(h8twice the diameter and twice the length of I. If I has resistance R, II ha 08z15tw; lhy qc(tcsps 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 5ew x5.dz26s/ vfjc .k7nhsaxhas twice the diameter and half the length of wire X. If wire X hasj xd7f .s5s2nhcw/v.z5 akex6 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 length L and radius r. qn50r b:3hedjc4jxn ,This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the 5j qbcrxe dh j,3:40nnresistance 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 Thomalxm3 e:5 lc2bls Edison wants to make a brighter light bulb. He decides to modify the filament.5lel3:x 2bmcl 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 resirns wnvhp/pnlvq 6zu 5q58)m8ly2)8 qstors are made of the same material. The length and u)lspq rz qn8nlmq)vw8pn2 /v5 6yh58 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 resistance3au 7qqz5gouc l*/ub.(4clh i 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 ai/c *c 5 (u7glhubqzla.4 uqo3rrangement 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 dikcqjx)j)mwn v1 p)3f: agram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltcjfpn)) 3jx:vqmk w )1meter 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 ri)dpbe1o31l afwrw3 h5i pj9y: ght. The three bulbs 1, 2, and 3 - represented as resistors in 5h9p)d b 3f3awry:jeo ip1 1lwthe 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 rigfln()rtc4 b x:ht. If the current in all three resistors is equal, which of c:tfnbl (4 )rxthe 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 siezcu4 97 e1xqede ;9fp* es/rtmple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbsudqer9te p/e;e 4xfc9s17 z*e)
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 fol n55rqzrd1ht vv-yoq98 u5eym4 84riklowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equay 4 zvdyr 8-859ht5r qvr 1k5niqeoum4l 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 conu*nffv** o0h mif0,nze 2zz82tac bc0(fps 7gnected 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 battery, which one of the following choices best repre0 (ihb 0cenn*z* fs zf2ao28 ut,g vfpmzcf7*0sents 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 )p1qyob*9 ;v1r nzbbvwill pass through the identified resistor in 5 seconds once the circuit was coy v1zbb)v *1;qnrpb9 losed?


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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 in4 uyn;mz 7u+h:nq2cfbzm1z cms 9dj9 1 the following simple circuit have the same resistance, which would dissipate the gr1+:mbcu uzf 1h2d;qnms 97cy4 m zjnz9eatest 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 j)*+ulzjm* 5k q, uikn6.0 Ω resistor is 1.mq )u5z,ji +knuk*l j*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 resistors R1, R2, and R3 aref ,zu,39.wxzqre,qou0 v/9l-a f astq connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω,0aal, ,fxf /q u-zst,.q rqze9uv93w o 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 resisto+jgz wo oe)987/tkqgtrs R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is )o g tqkewz/7g8toj+9the 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 maxi6/ip )9j k*eil kk. nensiur2:mum value of the current under these cinikn s2p*6 j9e/ e.k kir:u)londitions?

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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 desvh3t8a -(as dcigned to operate at 120 - (aa3d8vcst hvolts?

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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 41xldg76x 6 9al /bhrovgg5-yn ohm resistor that is dissipating 36 watts 6v/ 9lalro7gx1b 6 gn5xhgyd-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 marked "120 vol.t* 2v guzkqblz p5o:7t, 600 watt.” In normal 2v.b z5: gu7 pqlto*zkuse, 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 NOTp r*ldl)p 25 s*txp66jf epup/ be produced by a circuit containing only three idej*plfp2d6p)l x 6 pe/u5spr* tntical 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.lkqj(aq6zeem v7-, c3 ;47baxn yfie/0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three4eae(nz b7 ,fi;xe/qa q6ykm-3 7l cjv 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 togetu :wtvx q3o,6plhcn(; her in different configurations. If all three resistors are used in a circuit,3upt 6nc wq;v (ohx,:l 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 battery, a total power P i/zypg-.oky2 2yq dalml;*b4b s 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? Assumly2 gk bloyy4; p bdq2a-m./*ze 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 R2pn4s( 0knk+)l9iye 5kxgc(sy, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the res+c yxp40ksk)(y95sgen ln ki(istances 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 resicr 1f(1pikc7 qv1lhl1 t/2sepstance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to wce/(cvs2l p1h1k1p1tf ir7 qlarm 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 i4 :imm66xow scs dissipating 36 wa6oci4 mm:w6xs tts of 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 when connected to 120 voltu 3jkt2 4zii4ts. If the price of electr zktt34 2j4iuiicity 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 lit continh64vz cbv,l+r uouslbvzlr+h 4cv, 6y 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 thnm;i hn9ep7 4crough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the followi7 cinm;n94h epng 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 family of six owns a computer rated at 500 wa3rggjs x97/1qt qj9lj;10yilo( g hnotts 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 opjt 3g1;(ln/l9yhr9gio g0j1xo q7jqserating 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 fourq2trm5,ls ep 78; h,c8kwjdpd resistors to form a simple circuit as shown to the right.sd8lm,eh5ppw j qr27 k8c;t,d
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 resistors to form a simple y.)zsor e/hv 5 :zl;jxcircuit as shown to the ri.z ovrx;y se5 :/zlh)jght.
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 ideu9 pyr z)i2cm6 m )s*bxtw7j-gal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in tsiw7ujr9)t m2pz -x*g y6mc b)he 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 battere5a3o r,9hmh cy, an ideal ammeter, a switch and three resistors are connected c,e9a 5rh 3homas 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, v0dyo+*2rfu 9o;b ajpan ideal ammeter, a switch and three resistors are connected as ;or9ayb02d+*jp f vuoshown. 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 equivalent u:oq70hlf;y :vxim u/resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance Ro0qfx/; :7imh:u vyul .


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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 w46umj fl a9 *g;,fvz3em7d rdf/gd1 nqith resistanc*lqfrde9d317z,fgj;v 4 /gmn f6u ad mes $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connn: sww1s7h6m aected in a combination series and parallel circuit to a voltage sourcews6s: ma1whn7.
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 resis v;l v4eq/d/gktors connected in a combination series and l/4veg/kdqv ; 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 bulbs a-1ux2qnx q sm hl(j 4r;)1eipure identical. Which bulb will be the brightest? rj-lpx( uu;m1 1q 2nqseixh)4


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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 switchy83ebv cx1k y) and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampek c8ybev1) xy3res.
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, annkc969whj)p/m4 d.dkxl s,p 4v a3qwh ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reapdsldjcqw 63k99kh4 /m4p wvx an,).hds 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 resistors agkz:gl9m6.a p zmo(-mre connected as shown. With the switch open as shown in the d.pmg6zo :mazm 9-k(lgiagram 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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