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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 e e:+xh+ dlm l;vr85xnelectric 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 electric field through the interior vx8hd+llmee:r5n;x +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 i lil2 pteru5bou(66e5s k ii9;n parallel, the_________each resistor is the sar9lb52 is6toee(5u;6 uliik pme.

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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 cad;ae.z+8l3p,pqy m 26zhu.; vfwj9u tghat-r uses the filament tolf8 t6p g v;.jah h+-da2p .,uwzr;uty 3qemz9 become white hot, while the larger wires 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 beingpym. ihr 5+9h+ en*m t r3cb9*9vfhzki replaced with LEDs. LED is the acronym for which one of the foll 9 *b+5+n h3 rp9vfhmm*ye czhik9i.trowing 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 7u tur57m ;chrA. 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 tohrtrmc5u; 7 7u 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 qo.o/fuj ie i:aip+,pyz6t3m p9.h (zare made of the same material. Wire II has twice the diameter and twice the length of zyu pafi.6z (qjpi, :m93+ it/ohepo. 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 diameter and halfsnf4 m)f30gfq the length of wirfg3nmf fs0)q 4e X. If wire X has 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. This2 vdatd9( 7j cxiefw*/ piece of material is thenwa cvtjedx2 fd79i* /( drawn so that it is a cylinder with new length 2L. What happens to the resistance 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 light bulb. ;2d0kvft q2-s tah7voHe decides to modiftdf-t;kh 02v7 vas2 oqy the filament. 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 resistors are ,wmh 5clz:oud:w ewy 3 9w63rt,nmh k5made of the same material. The length and radius of each ,wwewudl3tmw5o:5h9zy :mckrn3 6,h 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, eac-g6qhpran; -e 2mrm(kh of resistance 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 -m(eak qg- nr hrp;6m2equivalent 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 accoq( wkl-z,h c)v5leda4mpanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter-)dh(a zllqk4,5w ve c reading is 1.00 mA. 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 circuit shown to the right. The th,- bsa tnkpan39sfmi 337dt4eree bulbs 1, 2, and 3 - represented as resistors in th pi t,-s3dken7aa3sn 4b9fm3te 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 0wj )ppk,uwlafx/j 5f:nzb 1 :circuit at the right. If the current in all three resistors is equal, which of the :b5p j 0fkw:,auj1/wpfn)zl xfollowing 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 r6r (9xay4ppusc2- r(x f;gpbzepresents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which b6x au;rr2fyxz pp(4bp 9sc-(gulb (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 true concerning the simple ci;rr)5ny- q hxjrcuit shown where resistors R1, R2 and R3 are have eqnq- ;h5jrry )xual 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 a,9u f7t+ xqfl.chvz7are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit el t +ahfvczf.77qx,lu9ements are ideal. 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 pass through the identifie/0c1u 8l de(kxrcars kqz0d95 d resistor in 5 seconds once the circuit w1kk9e (saq8r clc ur0z 0/d5dxas 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 s o4q ief;pl/op*:;wdin the following simple circuit have the same resistance,;/pw:oi;4pel dofqs * 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 accompm: wf)dwuj+ dvqhr alix3x- 7j88+ jz3anying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply vol7 ++m wvfx u8z:r3h8 ld-q)ajj3jxdiw tage 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 connectedf 5)d,eu5kv9cu6, gw 8x rwaar 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 iscwk) x g5rua wrau,6 f8,e9dv5 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 R1, R2 andR3 are connectet-t7yo kxhoy.;:qz 5 nd in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω,yo;: ox z5 ttyhkn.-7q 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 watts and 120 vov/ xd5gqes+;i .ayfx:p:v c)18*zbrd op u8volts. What is the maximum value of +) :/f5g:.zq8pp;odav8yi xeu *voxcd1r bvsthe current 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 )v 6h4hxbv*7t ,t7ad k 3mvbujvgufac7(pv :3lightbulb designed to operate at 120 volts?uvhd,gvv77)apv:f6xvk ah3b3 * uj4t b 7tcm(

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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+ ;k dtb ed1jb8i:k9ob mfc))u ohm resistor that is dissipating 36 watts of poj)bmuo;1cbtf e ibk9 8kd+ d):wer?

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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 fvli(8*3h f kjused to press clothes is marked "120 volt, 600 watt.” In normal use, t(flk*i3j8fvh 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 bui 7l;rn*wrz9e produced by a circuit containing onir9ulwn ;7zr *ly 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. v8hkafxnp /l(7e. 0r hWhich of the following equivalent resistances CANNOT be produced using all th 7r(.0pa8klnhh e/x vfree 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 resistoh2sjkkw7d q/b z-b -u7rs of different values can be connected together in different configurations. If all ushbd-7wk /qk2zj7- b three resistors are 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 battery, a thf af6bzf( b5bcz(2ru s kwm,: 88om:5hf uzw.otal 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? Assumrw.wf,(c:zk8hbfh8 :6 o fm uzsuzba5bf 5(2me 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, are connected in4 xucg2u3q *fv parallel, the equivalent resistance of the combinau2uv*4fcx gq 3tion 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 db b2w-6kkxbd 3esigned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it w w-3 b2bxkb6kdould 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 i od(/mf re.k)i qb8b +suj..xa 4 ohm resistor that is dissipating 36 watts o.se u8o (iri).xjq +k/.fmdb bf 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 ( fu1yz ol *yw),v(lso:tjub 8amperes of current when connected to 120 volts. If the price of electricityuzbo18v(*s :l jy(ylwo ftu ,) 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 keepq m3;z/dsv 6ev a 100W lightbulb lit continuously for 1 year at a rate of;vm 3esv6 q/zd $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 power of m-ci 9o5ows;agi(-k 7 ddpf0q 24.0 W associated with the bulb. Which one of the following choices best represents thd 0o;as- cfp-o5ig(dm79 qiwke 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 comp,ybz 5 9r/pg0- rokwysb4 8gumcg */pmuter rated at 500 watts in a 120 V circuit. If all computers are plugged into a singlyzurwg84/r90pm b myb ,* /g5gokc-s pe circuit protected by a 20 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 connem7f ft1)a/p8hv: mvrl cted to four resistors to form a simple circuit as shown to 7:rfta8hlmf/ 1v)m vpthe 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 conng otag 390ufj3tm1 4toected to four resistors to form a simple circuit as sh ufgo0ta3t41tm93 ojgown 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, aw5gg:f 3gxgy9lv *y+t switch and three resistors are connected as shown. With the switch ope*vy3ggy9 w5glxf t g:+n 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 ideal ammeter, a swiv(p l3t sf 6atot490yjg,k, kwtch and three resistors are connected as shown. With the switch open as shown in the diagrao3t( fp9046lyv , t ,stwkgjkam 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 )3 +hhl(zc4j9aml/bjw(gapa eo;o:r are connected as shown. With the switch open as shown in the diagram the poal9)mj +((;j w3 r4ec:h/ gzboalah 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 isuqv0d;hu8k- m61rtf mxzh 7ljhtu +4, the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all th6h 4jrmdm8-ul01;ktxu,+zfu v7tq h hree 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 resi.ga w+29,zh,mg hit ylstance of the circuit shown to the right with resih wgyt9l maz,2i+.gh ,stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 re31svouy6vfs2v9jked 9mlwh6kqt 7 69sistors connected in a combination series and parallel circuit sl6q9jsd 61y3w h 6v7um9vkfk92 vto eto 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 idi/xfw 1b*+d kgwvwmpqd.54 9 ud vfai8xq)p/7entical resistors connected in a combination seriu/x 5ddpaf 74 +mg v/ idv q.9wi81b*w)wqxkpfes 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 bulbs are i tiif /9bpu,6vdentical. Which bulb will be the b9pviu/6it, fbrightest?


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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 e-)pws sv+j/u resistors are connected as shown. With the swijp+/w s-eu) svtch 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 idegayj)z2 /9offr9 pg-;jr1n eo.wp9 yxal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 az no1j- 9arfjyw;2.pf y/ g99p groex)mperes.
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 an9+.w/n r mhdc,eey8zp;lx4ked three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 p94n +er8xlyk./ ;,ewmhdezc amperes.
When the switch is closed, what would be the current in the circuit?


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