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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 shvsvzndg4 hu-b ; k73y(own, 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 (3hd-vv zy sk;ub4gn7direction 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, t3tik i xk(5w-zhe_________each resistor is thewt-x53kiik(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 of a lightbulb causes the filb o *.rghi3:unament to become white hot, while the larger wires connected to tnhubro*g3 .:i he 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 rs j,*rzz)-n .iziv u)86lb cdhousehold lights are being replaced with LEDs. LED is the acronym for which one of the folcidj 6zr)lvz *zir )u.8,s -nblowing 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 ha os /::2 (6qx cduvoek3nm fn*b)tv)jas 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 :)/bntdj qf o*moc6nvu2:ve3xks (a) the new length is 1/2 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 dt v.h 7 xp88ycg4agy5has twice the diameter and twice the length of I. If I has r .8x8h pyy c75a4tgdvgesistance 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 material8* dhxj(z n(8zevjzaua+z +n- 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 rx j(v88(nzhej- az* nau+zz+desistance 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. This piece 1oej9pm9becj ,dphd *t-ha7 3 of material is then drd,caj9 e7oh-mb3e9jd hpp*t1 awn 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 buk4 )d/*dlycj clb. He decides to modify the filament. How should the fi 4*dylc/ dckj)lament 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. Tl mnvlun*lh6m ;2li +4he length and radl;u62il+m n l mhv*l4nius 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 to a battery in ti a4zn/;x j-rshe 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 oz;4 jnxiras- /f 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 circuit diagram hafi1zti0+y tw 3vx 4(rqs internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter readiivxz+43t rqy1f0i (tw ng 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 thr1zat u9*i tte;ee bulbs 1, 2, and 3 - represented as resistors in tt 1tua z;9i*ethe 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 qytu9ni. c5i(at the right. If the current in all three resistors is equal, which of the following statements must beyii. (9c tuq5n 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 elec ujc3(g-9upxb)opwce6hr p / 9tric circuit composed of 5 identical lixp9uwo (ug / h)3c p9ejpr-6bcght 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 65scuh d.dxgf/m 67w-z e) awmtrue concerning the simple circuit shown where reseu7wmdzhwa 6c/-g. 5d mf6sx) istors R1, 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 X andY are connected in series to a battery. Bulb X is brzs vu b,53d9bzighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with eac 3v,95zsduzb bh 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 r3ure,,g:eiv pass through the identified resistor in 5 seconds once the circuit was closed,u e3:,e rgriv?


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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 si 5qwq1bw;:to : upzt:jmple circuit have the same resistance, which would dissipate thequz1 pw::t tobq: ;5jw 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-1zl:jdn so( y the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V?n 1-:z od(slyj


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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 conbph3hzc( z:62 jb xa6xv;c+vgnected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 66 x+:j ghhzx(zbp2v;a c6vb3c.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 resistors R1, R2 andR3 are conne ft9nypxe-j e-nu,)y4 cted in parallel to a battery. Suppos uf-9,e4y y p)nxej-nte 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 v a17xdz35ss( ljme(ik/ 1x jhrated 1200 watts and 120 volts. What is the maximum value of the curr jk(ejl/sxsh7 ( 5vx1azi1d 3ment 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 1208/+u8el7dgcz df 4e ukx(pj rlfoof96- mq9(c voloodepd97m e9x/k4l8 z+ju6-q(f cc rfgul(f8 ts?

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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 throu ( xl gr8sct3.4 asmjcjwf.*s-gh a 4 ohm resistor that is dissipating 36 wat la rjfs4s- t*gm.(w3cj.8csxts 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 clothzyq9nvznnxrxfh :*eay59(bs 9)/ 0jces is marked "120 volt, 600 watt.” In normal use, the c9 ej*zq5xhs bvxyna cnn0r(/)y: z99 furrent 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 be pr0e q4cuhyxw.x o0oznj. uf -)(oduced by a circuit containing onqo )(z04 jxu0h -c wf.e.xyunoly 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 resisw w 7s+q8p px/g;s9 wqrmv)c0ttors. Which of the following equivalent resistances CANNOT be produced using all t;v9c r wtm0p)wp7/8qsw +qgxshree 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 difl mez l/yd*e/.ferent configurations..d*/ey emlz/ l If all 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 total powe -,6zbrib vl k58mtor3r P is dissipated in the circuit. How much totall658 brtm- vz, o3ribk 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 resistors, having resistance R1 and R2, are connected in ny1);cves3m ck,x*z 1wxnk5e yi-rj -parallel, the equivalent resistance of the combination is 5Ω . Whi3 v,k1) c-xy;5wrkx yenscez*n m-j1ich 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 redd;l h:;/velxsistance of 12Ω when operating at 120 volts. What is the minimum amount of timehdvlx; ;l:/de 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 through a l/et dk 17qtq/qr39 r kpwa5y*4 ohm resistor that is dissipating 36 watqt 9perywta1 d*q5kl 7 k/3qr/ts 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 heatemf2(ald ue 9f r26a:px9dx)fir draws 13 amperes of current when connected to 120 volts. If the price of ee a)xm96f f9f(x a2l:rpid2dulectricity 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 aaz)gmmajx93 2 100W lightbulb lit continuously for 1 year at a rxa3mj2 za )9gmate 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 t:: p7 adr)rsqlightbulb results in a power of 24.0 W associated with the bulb. Which onarstp )qd :7:re 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 family o.l3 xmld 0*e0e*f lhief six owns a computer rated at 500 watts in a 120 V circuit. If all computl 3x0m0d.*e hl e*feilers are plugged into a single 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 connected to four resisql4nrr xd(cwo -(o)j5 . ytxi0htg5d9tors to form a simple circuit as shown to theh5ycid d9oxr.l 5x)rt go (w 04qt-j(n 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 1inq.xbwy7(* 0 oqem lis connected to four resistors to form a simple circuit as shown to qon(7myb0 w.qex i1*l 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 areuk:::ge36 j( t2wc ofd3hqz xn connected aj k(wz3du q6xt gfn:ec3h: 2o:s 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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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 switch and three r m4* pj1xbegd/ 4mshi:esistors are connected as showd4bexs:g4m 1*ji /pm hn. 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, an ideal ammeter, a switch and three resisto xpl+kd2-o qa4zau z;.rs are connected as shown. With the switch open as sh kxaadlz;2.-4 upoqz+ own 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 equivalej x d p/d(4 kpq83l3j(xsj8lpint resistance? Assume that all wires are ideal, the battery has no internal resistance, dq px(p(i slk4x8 d83 /j3jjpl 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 circuit shown to 6tk aex3y ;gi) e7y x//fw4egdf2 (apfthe right with resistanceyx 46ye2wfx e )/7gd; iffp(aek /gta3s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resiee l z5tph2y s31x2rf;stors connected in a combination syr zfh2p;x este25 31leries and parallel circuit to 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 bdc* 6d76pbhka n/c ;iwelow shows five identical resistors connected in a combination series and php w6db; ccad6*ki n/7arallel 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 p mm9ad(*7dq qare identical. Which bulb will be (d ma9p *qmd7qthe 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 battery, an ideal amm ij8 o;yw44. r q i0wa-xrke3krgv.3ineter, a switch and three resistors are connected as shown. With r v.k0 wqea 44j-w 3i.ni38r;giorkxy 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 battg+ a2xwebt)27i 5zodx ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the zx5axbg 7tew2 d+2i)o 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, jr q/zx3h0a3w(/z*ao)veet s an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in tv0 wz tzq*(3)heoeaxsj/ a3r /he 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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