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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 rerd;4g* ; dsqimz ph,wi52wf+ csistor connected to the battery. Which one of the f ri5 p42qsmwf; dh,;*+zdic wgollowing 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_h9i ;no omnk-r:0 ) b/7c qts*cidx0ej________each resistor is t )/dboqec;oikh 9imt-jc 0 xs *nr7n0:he 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 tmi:re*s : xg4a02 arenhe filament to become white hot, while the larger wires connected02erxn eaarmg* 4i:s: 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 hoeg.ecy4ppw mm a-:u 1/usehold lights are being replaced with LEDs. LED is the acronym for which ona /.p-ue1m4:gyw cp mee 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 lennz 52pb: hrh-egth L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in hapbenz 2h5h:-r lf so that 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 I1r(is bhixtd.v+4 qp5I has twice the diameter and twice the length of I.5t1pbrdi(sqv 4 hxi+. 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 diam-:d*t ceooqawbp epc.h768+ w eter and half the length of wire X. If wire X has a resistance of R then wire Y would -qcdpcw7 p w*aohe 8.et6+: obhave 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 +o,rer (crfc3 v qpvq0*7y5pz r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material bec0y*,c5cfq (oq 7vpe v+r3rzrpause 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 d5mzv): e 6kfhoecides to modify the filament. How should the filament of a lightbulb be modk o)zfv6e:mh 5ified 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 length andi q1ly9 zg8n 05wbhkz1 radius of wz91h1ykl5gn8 bzq0 ieach 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 ttf 2).c( ffg:m *:48 h8lqivxqzu aynbattery in the following way: “Two resistors are connected in series. This combination of two resistor2aht8ivz f qfxm: g(.ft8qn 4 *ylcu:)s 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 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 ayx yhk3zfqy- b,bt-; m*,wft:ccompanying 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 vom3kby *fyb-, ,tx-qw:;yf htzltmeter 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 t vd xobyabvw(5 pdw ke)33g)3,o the right. The three bulbs 1, 2, and 3 - represented as resistors in 3owvxb a3)() ,e3 wpvdb5gdyk 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 currhvx4o kr9 of5+ent in all three resistors is eqvo49ox + hk5frual, which of 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 righh, r;cvsj, e/rt5r3aevy-z4o nagm( /t represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which-z (o,vtjry/gv r n,hec 5r/aa; s3m4e 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 true concernzn s3q4 gw)bd;+yva 1eing the simple circuit shown where resistors R1, R2 and R3 are have equal resy nw v+z3dags4q;1 eb)istances?


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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 arx1qax., 7cew4 tx zc5qe connected in series to a battery. Bulb X is brighter than bulc 4weq xxat,5xc.7q1 zb 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 w)gv0hik t )e1gill pass through the identified resistor in 5 seconds once the circuit was closed? kgvge)t)h i01


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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 iuqvnoa//.:-jyx , f q following simple circuit have the same resi i-uj/,vx /. qqoan:yfstance, 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 throuv9 lobj i v:s60 q9koifnj:30fgh the 6.0 Ω resistor is 1.0 A.0v 6k:9l sjv0n9b:ffoi3qo ij 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 resistom70egwppbb ;i( 5/yln rs R1, R2, and R3 are connected 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 is the voltage acp(w7 0yple5 ibn/g;m bross 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 pad.e af+lx(y ys,j2 d,;spmsy k/uy+9crallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Whps y+ ,sxy d ,;(l u2jka+c9fm.dseyy/at 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 md7tt:7 q9qpz and 120 volts. What is the maximum value of the current under these conditt7z9 : qdt7mqpions?

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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 120 /agm3 xg7t7: osfhq1q7y4 jlhvo/x3fm7 sahqohg7ty j4ql1 :g 7lts?

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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 resefohqwa( g xy1+:)uf6istor that is dissipating 36 watts e+):wu yo hx1(6gqfaf 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 volt, 600 watt.xtn+(glv .-kx ” In normal use, t.+v- (xtgxknlhe 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 coul;57f ic p* wesd98ohddd NOT be produced by a circuit containing only three identical 6Ω resistopdfo ;ic7dsh8w e*59drs?

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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. Which of the fo-*p55 m 0e:5ylvyyprhwrp8hf :k 7 egvllowing equivalent resistances CANNOT be provekh8rgyy 5 5y5:-plm:fv0re 7*hp wpduced 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 resistorp; bvl)v7a-fp 3xw*+sn w4mx bs of different values can be connected together in different configbswvmw *pf-xl;b +ax47v 3np) urations. 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 powtxs0v;z a b-*qer P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical restzb;vs- 0a *qxistors 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/fdfnmh e7fh.79 v- 0famd,vb parallel, the equivalent resistance of the combinatioa-nm7vfe 0d.fhhv 7fb/dm9 f,n 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 resistance of 12Ω when op 7 prwv5)pj7izerating at 120 vol5v7)jz pwrp 7its. 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 resistor that is yperu3rk 3 -.;lltqb 7 r6)6qfallo;l dissipating 36 watts of powe6b.rrq3ra3 ;ly p 7) -lqlt ;f6euollkr?

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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 amv2+c8kxu 2 1gaj-90h cmcahh hperes of current when connected to 120 volts. If the price of electricity im0chhacj h2v u 2 -a+g9x8c1hks $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 honb* f5k:sng .yu/6uhtw much would it cost to keep a 100W lightbulb lit continuously for 1 yeus 5bnfg: .nyu *6h/tkar 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 currenp4;:i 5tt zfxat of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the follxf;:ita5zt4 p owing 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 vzk:5fe-nyk3 w(;nu w, 3djalat 500 watts in a 120 V circuit. If all computers are plugged into a singkj3y5-v ,wkw:ad 3 nufl;(eznle 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 connectedzve0f . a6e7qo to four resistors to form a simple circuit as shown to the right. aevoz7f.e06q
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 jo1u*x-y hptp*k vx03:e-zxeyr 0l9 b simple circuit as shown to 0* 0j:yvht-kpl3uoxy*e rxpz b x19-ethe 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, ackn: o8rf3*0lyc*dha(/ u xxw n ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the w3y lhdx8cr o:x*f 0uck na/(*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 batter p-4wkiuwtov 4vsm880 y, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the au-tw 88opimv4 ks0w4vmmeter 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 conn7oiu/h:3 ; m4vhx n,g1nc nfwfected as shown. With the switch opeovxh:;f71 nh4u, mfc/n i 3gwnn 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 q ikj*ybk*1rqzj p29v( o:un9 the equivalent resistance? Assume that all wires are ideal, the battery u *r2qvq9kob:yz*j 1 np (i9jkhas 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 tod:naj z- r8bt7yojutf8)h .-a the right with resis8-t:adjyout)b nrhz8 7.-fa jtances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connected in a comf. hikha1vf9xg.jgo-.d q08bbination series and parallel circuit to a voltabk90xdqg .fvg.ifj-.1ho 8a hge 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 acu g8(6y .v5t-tq ic t5oz4thw combination series ao qh zt.yttg4c-v865w5 ct iu(nd 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 identical. Which bxudk,y8pg 30u ulb will be the brighteuxk8ud,p0yg 3 st?


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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 q/9;zgyu9 tcq;*o-sfi r c7bjideal ammeter, a switch and three resistors are connected as shown. With the -oi 7qq;s;b 9rzu *j9tfgcy/cswitch 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 ideal ammeter, a switch and three resistors ylv)0d/wihth thtpvo23 ;jwo ,75x8 sare connected as shown. With the switch open as shown in the diagram the ammetert / j2tv; wv,hs8i xhd5lwto3yh7o0)p 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 00 d7c g/bp3ncff2nf aammeter, a switch and three resistors are connected as shown. With the switch open as showf 03fp7 gadf0/nn b2ccn 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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