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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 metal resiiaz ;9zuiq : y:rgjc* /)9n2 n8ne1myah/aqgv stor 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 throug/h2inza8zei / ag*q9 nanj 1 cvr:9);:ugyqymh 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 rl6ebx025hr8u6kc nkrz: dt r6 esistors are connected in parallel, the_________each resistor is the 6 r5ze knhrbxu8 r0c 6dt6l2k: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 liahl s +-1,* ;ajm7z r:whcsjfnghtbulb causes the filament to become white hot, while the larger wires connes lrfz7, j mw-1:nhc;ja* +ahscted 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 arcgi2t-jhv9e asl(t 9:,)x saxv6g v3 jts7 +yae being replaced with LEDs. LED is the acronym for which one of the following choices?h(s )aasvae+xx7,g vil3st: tg 2v-69tcj9jy

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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 aih( zl:- kehm+nd 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 :hleki(h-zm+ 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 *6mdq0p5.nwitf;lm bmaterial. Wire II has twice the diameter and twice the length of I. If I has ibq mtd;nl5mw6.*fp 0resistance 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:3oswzyj us)3 :nk (lq and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistancs3q :u()sl ykwn:joz3 e 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 i5z1gwu hnqm(s);g+kpiece of material is then drawn so thqm)zwgin5hk; g1s u+ (at 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 a75;r n9km:q l1fi/e)sh4 z ivdtsj;c f brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb proi;hr4;51:skn/jf9v l7t if)d cs zmeqduce 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 zq/6kpzzs a )fg0i 3:wbsy(zw:a a y27the same material. The length and radius of each resistor a7/: q: (iaby0w pkaf2y sszzw6 zz)g3is:
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 conn- t1 f oxc0z5q0n0b jv:ebgvg0ected 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 0vf0vbcb t0gogj xn:5-eq 0z 1this 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 18q +zb .e3xhqtq gdo;cnu9k0m6f5xp has internal resistance 10.0 kW and the ammeter has internal r9tx+qem dfx3 k 5 nouqbc0.zh861pg;qesistance 25.0 ohm. The ammeter 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..23 *aktb :cwqnzj0vp( heyh 9 The three bulbs 1, 2, and 3c2wjqnk . hpba3y 0tzv:eh *(9 - 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 electrical circuit at the right. If the current in all t, c (ky*mrc2oxhree resistors is equal, which o*c( kc,rxyom2f 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 represrzrh7c:fqv* :4m ir .jents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbhzr7 r::rjqc f*iv 4.ms)
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 simple9kl1q/cep yk0j /fj1c circuit shown where resistors R1, R2 and R3 are have equal yl91cjckp 0/q ef1/jk 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 brad izv6kd 47a-ighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each othv7 aazddk4 i6-er 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 pa 9yp8 zsxjqt (;r-olx5io4aq*ss through the identified resistor in 5 seconds once the circuit was closed? rx o9 izqys-8l xoptajq;(*45


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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 tzxv-p kvp7li7:..j qd he resistors in the following simple circuit have the sak.:j7vz q.7 vd-pi pxlme resistance, 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 d;2bj)ta.jff r iagram, the current through the 6.0 Ω resistor is 1.0 A. tb2.fja) r; fjWhat 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, ar1gf; .xt 5mjnnd R3 are connected in series to a battery. Suppose R1 ;j.5xm1rngt f 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 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 co78 jhct 3btxya xg:+.jnnected in parallel to a battery. Suppose R1 has 2t7a j g hx+b3xyj8t.c:V 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 rated 1200 watts and 120 volts. What is 5naic1ay0*de gz(6fpf:;kj/ g /7rz9 mwoy fy the maximum value of the current under these co ;yy9r/af 6wazkdiofg gp /e n5ycj07:(f1mz*nditions?

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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 opi91 gqpyw4*u(m,7vr. v relma/*lmweerate at 120 vol*e(17agm p 9/wquv v4erir.,* ywm lmlts?

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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 dissipating iql5 g/)icm.+.uevft 36 watts of ./mi fg+t.euq lvi5)cpower?

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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 clot8.-kax dh .qkwx,ij(hhes is marked "120 volt, 600 watt.” In normal use, the curre q..w ijkkd 8x-,xha(hnt 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 produced by a circuis(xivpe*t06 zzp-y 3h z w-w;ft containing only three-;vxh*- f60 t3zpwez(wyz pis 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 threpw5j -g pcm)hs7:lq p)e 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all thr-cwg: p5j)shqmp)p7l ee 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 ,s 8cxkf:h9xi je.y;(pq*k hsconnected together in different configurations. If all three resistors are used in a circuit, how many different values 9;(pksi,.xk:sceqx hy *hfj8 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 is dissrsdg9 gav0h:wxzn +ek2w+s+5ipated in the circuit. How much total power is dissipated in a circuit if n identical resist s5:+s9ndg+ r0wkzwav2 hegx+ ors 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 cparer kvdmeu;w.-p i 4r *2m62onnected in parallel, the equivalent resistance of the combination is 5Ω . Whmu adivm.2e2r*4 kwp6r-r; e pich 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 tn2m0s.p3 k qjao r5r ;qy05h8sizijw ,hat it has a resistance of 12Ω when operating at 32qh srji o rm0pqj85;i5ayn.kzws ,0120 volts. 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 through a 4 ohm rg8*po)jgpgk 9esistor that is dissipating 36 watts of ) ogg*j9gpkp8 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 v1gggov:b)z8l, r,f 3h chv+i -dlpv,volts. If the -gvl1+ ,vl,ozh):b 8dchv3i,prg vgf 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 ho;6qwg0vai3w(cno ) hhw much would it cost to keep a 100W lightbulb lit continuously for 1qh;o6 3c( ww0niha g)v 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 i n.n;ggy) bx,(ie)iuy n a power of 24.0 W an.ub n(yxyg, e )ii;g)ssociated with the 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 family of six owns a computer rawl6e0npy8 /:b do lzu*:ys: mvted 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 yl:syz e: bdv:l/8mwnu0*6o p 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 t1qj9 ew ,trf91lzb9y connected to four resistors to form a simple circuit as shown to the retlfz, b1t 919rqy9wj ight.
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 circui)py t.m9j.f9nq od 4(mi6iyqvt as yijydm6.9p.oqi)tfq 4 mn( 9vshown 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 three7:h1zkz d7ms e resistors are connected as shown. With the switch open as shown in the diagram the ammeteke17: z7smdz hr 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 ammetertq +wt- gy5 +8e0q*abi*nvyt( k) quag, a switch and three resistors are connected as shown. With the switch open as shown in the diagram k *ytq+ uvwi+ tgbga5yqn *)-a8eq0 t(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 are connps+ ef,y./39yijklpf ected as shown. With the switch open as shown in li /k39ysfp .fe+yj p,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 rightt15 dzjs+2 eprz k+j+k, what is the equivalent resistance? Ass dersk5z1zk+++jtp j2ume that all wires are ideal, the battery has no internal resistance, 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 the right with rejxge*6:cclj xg -/7n rsistances gcxc7jn6e j-/g :xlr*$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 bev nglgyvv g:-3x772ielow shows five identical resistors connected in a combination series and paralleg32 7v:v i-xg7vnly egl 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 below shows five identical resistors connected in a x9tb vqrekl -x- -k5.pcombination series and parallel circuit to a voltage sor-x -xlv9keq 5 bt-k.purce.
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 identical. Which t4oglt 123 pwcu 8tgb4 dh4iqvw.z a:,bulb will be the brighteshggbto4,u.pzvqtl38ai4t 24 1w : wc dt?


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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 ammetero6 :it mv;.bdb, a switch and three resistors are connected as shown. With th;m.o bt:6d vibe 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 ide qs a:fvw (a 97.upvi8qsp0oh4rdl +a6al ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammetes (.79 8r4sfai0 hp+6q:avdpauowvql r 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 threek-nfhack2b o*e0z;lcb,v). b resistors are connected as shown. Withbbz0c c. a-)bk,olh k;*2fe nv 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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