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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 resisto2:swf wg vk:;zp tw5;nr connected 2ts; v:wwfkn 5w:gzp;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 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 w +663rnr /h.son/jc kgk 0chnin parallel, the_________each resistor is the same.cr/kn go/3 nhkrcs+jn0 6w h6.

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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 l((it (3e2g*wvtsxdh the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remas exvt(g ilw* t2d(3h(in 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 bei.y yx)0 o-g.: xyz57mpaa(e3lenq4d.ewu jajng replaced with LEDs. LED is the acronym for which one of the following choices. 5(lj: yopxey nd)0q3 z-.4jwaxm.gaaey u7e?

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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 graphdyh (uzd m6) .zre z5awa5;h1yite resistor has length L and cross-sectional area A. It is to be placm6adzu; d(z5y5h)z .1ha wyr eed 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 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 has twi4gw1. x8vpvbj.jdtw ;kp6zi /ce the diameter and twice the lenp1/zpgj t8jxw.6dv b ;i v.4wkgth 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 diameter and half zhdljz *012 ;f(e gsnath z;jg(sna1zhe2 0df*le length of wire 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. This,rrnq03ws pbu;zs y43 piece of material is then drawn so that3ny 4zsu r prswq3,0b; 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 Edi0q8uzp xnbbfmz 9s -+(son wants to make a brighter light bulb. He decides to modify the fis+n0xb b8f zq- 9mpuz(lament. 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 made of the same material. The ed(gsjt:b:p6d ,mr.kf 1y i 9ulength and rad s(j:d1mpf.id: 9egy,btr6uk ius 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 batqy:p7 ;,szd9; rd blvbtery 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 in7;y rqlsv:bp ;ddbz9, 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 accompanying circuit diagrn3zh*z qe .i5/s( kc/ufq 2imuam has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter rea5c qu2/qsn z./ziemiuf* (kh3 ding 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 bulejsc)*5 0hwt lo2 xmtct 240oybs 1, 2, amc5 o2)wjx 4l t20sceyt*hot0nd 3 - 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 curj5oh .bzb cn0;rent in all three r0 c;.b5zjbhn oesistors is equal, 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 right represents a caer xz*4j-e9 il: 6v rzznkw4i*l6 3csimple electric circuit composed of 5 identical light bulb4wi 6z*nxzerl 9zi c64v lj:e3*karc-s 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 tkphti8 3 )2ux te)hox)rue concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resista xpko)2u3x)t8t ih)ehnces?


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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 isy8 -iem.n(nrre+ me yw64h-o k brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in pw8 -.-e y o+nem4n(ik6 rhyermarallel 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 identified resis/u(w y(/bpsd gw1ify q /(r;gwtor in 5 seconds once they/1 //gp(i rq(ydws;gf wwu(b 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 the, 0:4rv xxsxx4+lgxj 1wdqad ( same resistance, which would dissipate the greatest 0+sa4w 4xdvg,rxxqjx (d x:1l 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 the 6.0 doc9k9i61bqux.bp( j Ω resistor is 1.0 A. What is the power supply voo quj6i 9xc1k. bdp9b(ltage 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 hfz,,/ ye3 hpfs9sgksb,e- 8y 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 d-/3 ,g9b ,ph ss hekyyf,8esfzissipates 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 cq7do5 g uog/ru mpr/5/onnected in parallel to a battery. Suppose R1 has 2/dm5pg or5rg7/ uoq u/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. Whatnkp;1 85 s 5mr,feoq4f d8mz2croas9c is the maximum value of tfdo59k8am e om r8;ccfnq21srz,4s5p he 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 lightbulb designed to operate at*ab yczo +ubnm)87g8 3;onymc4q+ae,j hy2bz 120 vo +7); ,y+caj3bbzm8nhugzno8coa2mq *ybey4lts?

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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 obh -p,qcqb/:;t;luz p hm resistor that is dissipating 36 watts of poc bq,ubtpz/p;q;h: -lwer?

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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.” Indg18kvt ; *hi*y:jfwgi * )do,lyv. ankydtjd) woii1*gv :n*lv8yfg,h. *;a normal use, 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 produced by a cg 5ks; w4wscj4 kn(o3dt de)lb.ztu4+ee+nm (ircuit containing owe( (etw5;4jz c. sskkm34+4 nddn)g t+lebou nly 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. Which of the follow6l6bl qfdmh i). 4tq*ging equivalent resistances CANNOT be)ihldtl mg 4*q.66bqf 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 different validtyhwxw bsq c 0aveb,(;,bj/t2(w1 4 ues can be connected together in different configurations. If all three resistors are used in a circuit, ebt2w0/ sd(ibc b vq1xj,,;ww(4yath 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 power P is d(rq r g29sj .-jn6bxplissipated in the circuit. How much tot2-r6b sj nxp.r(ljg9qal 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 connectxyt+o gs,)a42tcumyv50 / s bked in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is correct? b5vt+k )msyuc4/sg, oat 2x0y

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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 r*wyt thjvm*x:pktj 9 3a. t+)lesistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take *.tt p:lt+jwjyt vam3x h)9k*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 x*w*dklag7 ;x7l7 e efis dissipating 36 watts of pow; 7fxl7k d*a*lexg we7er?

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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 wheseey9xid dlk:e ,*+4m n connected to 120 volts. If the price of electriy: +xedk* ,seidm9e l4city 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 ci1ojl.9cfn1n(cmd kahj11 1kost to keep a 100W lightbulb lit continuously forc(joi mh c1djkl91. an1 fnk11 1 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 in a pow/ pt(67cj x qg .w3/wb;txbtxqer of 24.0 W associated with the b/7q3;/( w txbgbxtp6 j tc.wqxulb. 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 g)) lr1 sg(zg jrf-a.ma family of six owns a computer rated 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 nu r-1zms.(ga)f jr)glgmber 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 resistors to formuww -g0)-g -siu nwhr6 a simple circuit as shown to twu g)r6w-uh - 0isgwn-he 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 battetjzmr 5:l)ad5y3q ehy49 iz:ury is connected to four resistors to form a simple circuit ary9j:z3t)aq 5:i5lyuh4dze ms shown 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 three r* c8u60mxj/g f va5zaoesistors are connected as shown. With the switch open as shown in the diagram the agjac 0*mov5fzua/6 8 xmmeter 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 ammef2zsy ;qq8 q7x s83 nzcygoj5(ter, a switch and three resistors are connecte 8njsyfo78q5 ; 3zczq yg(qsx2d as shown. 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 ammeter3y e1fw( s+ha)m8 jd n d0ytrr0qb;pc6, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammetar dcm ys0 fr 01bnw+dqt;(eh3)8 j6pyer 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 ru re95 9nlxoi-ight, what is the equivalent resistance? Assume that all wires are i- 5nio9lru9x edeal, 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 shd0 )gtsgwyoel;.t.x5h s1:p u own to the right with resistans:lt pyg.;xutg 1d0eso)5. h wces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 .4;orp 4ve zs+ftz ry)a combination series and parallel cip4o; yv.fstr)zzr 4e +rcuit 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 rexwesm/cymu07 , z dfg9h .bu9+sistors connected in a combination series and parallel circuit to au7+m fez9wugbx,dym 0c/.s9 h 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 ar6nqh *vb8)y9rqbv* nl. g(dxnk cq 7bc66dxr(e identical. Which bulb wilbn*dxyqrnbv c6nr7x9qql6(gd*v( ).bchk6 8 l be 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 ammeter, a switch and three resistor,,jxd opns,da xtqh6hg8 6e72s are connected as shown. With the switch opep,,6jdh7dgtas2h8 q e x6 oxn,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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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;u9m zb5s ncyn,cvq1j 1b qm*;, 3vezd switch and three resistors are connected as showj9v1*z53mys, m1 q ecunb;vd ,q;nbzc n. 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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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 three resist(49cl jvhzvkn8c. n e0h,by5 zors are connected as shown. With the switch open as shown in the diagram the ammeter readhbhvj 4en9zv5cn(l8z, cky 0. s 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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