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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 shownxu+z re:t w69k, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes thxz:w69+e rut ke 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___h w-,egn jg+ 2s;kbu7nqf: n5s______each resistor is thng:k5,un2 7 wjgqnsb+hf e-;se 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 thi c ,blkz.0h r8/)afky;s)iaysn filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remainhby. ar;)fak )y/z s,08licks 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 being replaced wl6xns+.rg9dwsp ob 0xclv .)+ith LEDs. LED is the acrony rvng6.s0w+ pb xdl+ x.c9so)lm for 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 has len*i */gogkdx 7lgth 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 resistivio* 7*l gxgd/kity 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 wir0be- z1ho+) zyv viuo0e II are made of the same material. Wire II has twice the diameter and twicvyzbhuvi)o+e -z0 0 o1e the length of 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 divl ,)4mso9 klhmqy 5eu-9;ecbameter and half the length of wire X. If wire X has a resistancm)5 oy4vsme9ubeq; l k9l,h-ce 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 h dcha gdbmir e26)z-* wb ac4)ti4.i,jas length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happenab)2 6e-ciar4) i4wd h.zcj ,idm* tgbs 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. He decides hw1jrxipqw t j-,;2l* to modify the filament. How should the filament of a lightbulb be modifie,xlrwp1j;* jwtq-h 2 id 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. The leng+q lmc+*du/n;d,umqvi6ey2 pth and radius of each resyue 2*n;im +qpm/cdd lq,vu6+istor 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 u+tht.)p(he f rihv+/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 equivalent resistance of this arrangement of h.i+)hh pfe+/ r ttvu(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 acco hb0sg:ep7(+h5rn keqmpanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter readb5 egkp7hsnhe:(q +r0ing 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 three bulb/h) ipz2hv;ufers sg(hd4m hu)q8p71 s 1, 2, and 3 - represented as resistors indphsmf ); 4suv8hh1er p2uh)q(ig / 7z 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 h716zpplz:22xakksf1a )2 uo q xi jj3circuit at the right. If the current in all three resistors is equal, which of thshzj:17xfj21 pl u3ia 2kqpaokxz 6 )2e 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 eleh 8y1-oys/dszh: yi *rctric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whzod-8 *riy 1y/:yshshich 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 fos4e 9pey 7h6mxllowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistances?e9 h xspm67ye4


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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 an0;q)rb p *,og4 bdmubtdY are connected in series to a battery. Bulb X is brig q ugp )0;dmtbrob*b,4hter 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 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 th2f4xudv9 j3,kl iw *jzrough the identified resistor in 5 seconds once thez,*vdiwl j 4x2f3u kj9 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 simple circuit have g oba6 ep6ucv/zxd ;24y,+uri3sb- z ethe same resistancrzy a+4sxe,e uzg2/o-6c ;upv6bbid3 e, 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 diagram, the current througc(z dpi0ppbh(a y,t7jf3 .0yhhg 9 c+lh the 6.0 Ω resistor is 1.0 A. What is the power supply voltaac hdlyp(fz0 9pt3h (,y g+c .pijb07hge 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 a b n:)ig n2da5duattery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of i5d nug:n)2da 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 connected in parallel to a bannafmw-n /dtp f sn0ikq5i / b3oi12:6ttery. Suppose 6 ta pm2/n1finsnnbi-0o:di5 q/ kw3fR1 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 rated 1200 watts and 120 volts. What is the maxl;ocflup(tt3en ;dm;b :6 .gn imum value of the current under these con 3.cfm;; tg;tl:u 6 npdebo(nlditions?

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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 uz-cik)epm0(;6 lz ju60 watt lightbulb designed to operate at 120 volu0c) 6; zumk(jelz-ipts?

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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 r3mv ny,-6uv 1n-qg j2rgx u0jvesistor that is dissipating 36 watts 2uvu jv,0 --jvqnry3gm61 xngof 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 volt, 600 wa*h2q eyvymn lqe ;j1-6tt.” In normal ueqh1n yj6q2y* me;-vl se, 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 be prbj-c6fs 2xmhm7j:1 rb oduced by a circuit containing only three idenm rc7216xfjjs:-h bbmtical 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 th aqri3yb xzg*r(-97gc ree 1.0 Ω resistors. Which of the following equivalent i*gab( q73-r cgxzy9rresistances 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 fiv6o*u ck+cwmj;j 36different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be produce+ m;c *vk 6ufc6j3oiwjd?

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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(e4s;r phd:y h o)jdu3;,hctj P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistorcdrh3;j 4,;pohhjs )ut(:edys 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 r,ly0+)hro.dsx ue k3 xesistance R1 and R2, are connected in parallel, the equivalent resistance of the combinati+3el)dyuo.0xkh xs r,on 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 designed such that it has a 12u eluf-, evvpi nd9z;o: zc:resistance of 12Ω when operating at 120 v-lf 9,:dueov:zcni1v z;e2 puolts. 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 o/b/wp / -+2hzvj17ty /vv j oe.d7dz6kmvbnpmhm resistor that is dissipating 36 watt/hvbv tke/6zdwj+dvmj2m1/ vo 7b. ny7z-/p ps 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 dra:s49*6tl 5cla50gw eciajb jews 13 amperes of current when connected to 120 volts. If the prist 6lwg4i5 jela:0be5jc*c a9ce 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 lightb;ypu c tk1d b1v5q03uzulb lit continuously for 1z10;cuuptq3 5kbv 1yd 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 currentqh: y1 tfj+4f :yjsr2i n.-uda(h+btz of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. yib2jrsjz d4:n+qf.h a:-y thf (1+tuWhich 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 o b(gycn 4ayu37n8*oiqf a family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are 74 bian*yoc3 8nuqgy(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.5o)tdv )uch d four resistors to form a simple circuit aso)dc .5uhdv) t 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 resisto11m; - s 7y .f:as0dvdgappodwrs to form a simple circuit as :d svm-f17d1;paswdoy0 . ga pshown 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,qeuz6h q rd 3;qcn l+-uq+8.eo an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as showq 6cq3h+ n-euudzeo 8+q;r .lqn 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 resistors 7 /btn 15v2bsoe9xpl pare connected as shown. With the switch open as shos2bbl v75otp91e /nx pwn 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 resistors are conv9 yxal j fo*tn/m*4m77ix zh/nected as shown. With the switch open /z*7xoh74 it/9lmymnjfx*a v 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 tlavj +fkl92d2o the right, what is the equivalent resistance? Assume that all wires are ideal, the ba 22+dl9a fjklvttery 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 t3urv9ce+d h s. ym;0jbon y2 jf*pq.; right with resist*h; 9pjq+cvumts0ye.j nd yorb.2;f3 ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 -.7gm(sykesmzw.0 y econnected in a combinatiow(gm zs-s.em0.y yke7n series 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 below shows five identical rg0cln /f/ek/hesistors connected in a combination series and parallel circ h///kf0nle cguit 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 circavbtj+:2+fe (dwt68sgsaa / z+g b wf3uit diagram, all of the bulbs are identical. Which bulb will bebtaebwgtz(w8+fv/s3 fa+ a +js:2 g6d the 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 atg -l/8 ixplb)mmeter, a switch and three resistors are connected as shown. With the switch open as show)l8g-p/b xtiln 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 amh xu)p u)x8e/jmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammethx )uxe/jp8)u er 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 batteryqid4a sfh:;-tz- ,a wx, an ideal ammeter, a switch and three resistors are connected as shown. With the switch ope ax-ft4i-:hq,s azd;wn 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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