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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 currjep 8i x s9)9x+j6lkol w/p1ycent 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 direction of the electric field through the interior of the resij j x1eipp6clw)8/9+ 9oklyxsstor?


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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, th4y i,(nlhb4v /im6uqre_________each resistor is the sa44rbl i(i mvqn/,6hyume.

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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 t z)nex.z s8b-nlyn 3f5hin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulz n3len x)- 5f8b.zsynb 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 are being replaced with LEDs. LED is t98pjd+t vigy- he acronym for which one of the follo +9 8t-yivdpjgwing 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 length o7ssp0 dhl ou9j-ml1 mh 0x2o*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 du2mh-h0*l1 sjol oom 790spx 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. Wirej)pryk*6 6t,v ubeb4a II has twice the diameter and twice te)btpubr*4,6 vkj6ay he 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 5)gdozwu+d*vaia0 8 w but has twice the diameter and half the length of wi*iv8zgaw duo+wd 50a)re 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 cylindrical29n:x4(uj:e yc gw gkv) b(xup resistor has length L and radius r. This piece of material is then drawn so tw9(kyu()gb::j g cxxp ne 2uv4hat 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 bulb. He deczm(3 h0wayl3xides to modify the filament. How should the filament of a lightbulb be modified in order to make the lw3xy a3(h zlm0ightbulb 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 resi85, ,l 7ydbat nfm4npostors are made of the same material. The length and radius of each res8ad,4mn7,5t nlb fypoistor 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 resistdq0) o7n8sm1.s ely aeance 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 foursqelyea10od8 ns 7).m 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 has internal res0y u1m 4n9kmedistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most 0ynm1ke9m4 dunearly:


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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 1c7y utjx;qc4 rczzt9( 4q ko5bulbs 1, 2, and 3 - repre5y7cu944q1zx (o krqc czjtt;sented 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 curr3ip -8mlpd/ iyt l3+mnent in all three resistors is equal, which of the following statem-ld8lm m33/pyn p+itients 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 reprsii-fu( yi + jly6o5j0esents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which b 6j-os( uyfi+i50jl iyulb (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 cgoanuq.(4 b3h hxg5yq )tqj/6oncerning the simple circuit shown where resistors R1, R2 and R3 are have equal resista xjbn5ha4.uyqh3q( o)g/6tq gnces?


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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 bct jjo19yzmu3nl5/ 2 xrighter 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 followij n 2ux1mc/j5zl93toyng 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 dj x(xtn5w4j.9 6x63m(lh bgskusiu6 resistor in 5 seconds once the circuit was43.6sxxg6( mjh5ju6bx(tludsn ki9 w 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 fol25 decgm3, hyglowing simple circuit have the sam3ey d 2,h5ggcme 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 diagram, the current throughhvym89( yuyq) 0ely0qi m *8dq the 6.0 Ω resistor is 1.0 A. Wyhe(*y uyq0m9 v yq)ml80d8 qihat 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 R1llq3 gp01ih5kt mcw /q2j+4ty , 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 lmq 3 q 21t5wpyt 4/hcilg+j0kthe 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 differen;bw k5k6yz*l +cg4 scxt resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V +kyzksg5xwc ;* 6 lb4cacross 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 n:9 1l mc)cfesa os:j v7rm:g4fmu1f:rated 1200 watts and 120 volts. What is the maximum value of the current under thess1l a1f m )g7 nrc::u9:jfmvfm4s oc:ee 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 operojo(t u 6.tze*ate at 120 volts6 uz*j tteo(.o?

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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 dissipatis8g6e:pe8cxpd)hse pvw5( h0ng 36 watts of se: ghw5)x8ppd( s ce80vpeh6 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 wac:0a /xuqnafsha.-. xtt.” In normal use, the current in i-q h/n a.0 us:caa.fxxt 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 r 4 qwnybx4dx4; 2/yyka circuit cont4b/r y x4yxn2ywk4d;qaining only 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 following eqi-r(8w ba5 gso-k mxyejw6,q1 uivalent resisw se5gjq6wi (81x-br,ay- okmtances 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 different values can be connected together in s jr sxk;8zqkquxn+nm/2( 0- amv 3)rzdifferent configurations. If all three resistors are used in a circuit, how many different values of total resistance can be producedkr; mn /s80nj (qx2xkm v+s 3z-qzura)?

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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*ilj6n4es ydx-7/o p j dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same battery? Assume the internal resistance of the battei7y-ls6je4 x*/op jnd ry 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 rn,z i +p06xekuesistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the foll+ k0znpu,x6 eiowing 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 designedb 5 /wzvz(l*598ln3uqdv vjyb such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time thvzdyl 3z vuq5*8blv9(w / bn5jat 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 res, qz0osr)6 xshistor that is dissipating 36 watts of po6 0s,x q)hrsozwer?

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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 voltm d(h ;x: js/huci(-vns. If(:c d(/vx-s;hmjinhu the 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 how much would it cost to keep a 100W lighk/ul . x9k0ebgtbulb lit continuox bgu 9./0klekusly for 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 d38*mq5f qgke results in a power of 24.0 W associated with the bulb. Which one of the following eqmk3 5dfq8g*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 95dl4qv;g 1i)1 kndsbjqd hf4 owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit prnq1sh 95d f kd1gdj4l4vi)bq ;otected 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 resistors to form a simple a5 8rgg le-+4 nbx6kigcircuit as shown to the -5bg+e gkgnx ri6al48right.
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;gc1us)8nhuc q0:lm o resistors to form a simple circuit as: g1sncc0 )uq; 8hmoul 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 resistors arefs z3)gs30gcg connected as shown. With thf0gs gzc3)g 3se 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 *lp)h2j 2 ysjv s/ytypnud-* *resistors are connected as shown. With the switch open as shown in the diagram thd2y*htyy)s2/u *pn *lv-jj p se 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 thrtcqsaw q45 9pi bbr4e/*3-i 0 wirow-hd9vq/j ee resistors are connected as shba4qws /3 wij4*i qhcewi-dv -rb9o0tq5 9rp/own. With 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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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 equivalent reoq 0h5v-jf6z :n kaxyk,+nn,csistance? Assume tv ,- kn ,hckn6:05xzy+fjnoaqhat 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 shoi7v- 0z d0vi*u*ibbnawn to the right with resistances an07b*zu*v0i idi bv-$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistork .n1j+lx bp 0wz67c f.psceh)ex(t0u s connected in a combination series and parallel w1b lx7(xu . 0c0hs z.pen+)pj ct6fkecircuit 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 s isfojp. qaipyb:74w n5-18vp hows five identical resistors connected in a combination series and parpoyp1:5-iwfp.8q avsi j4 bn7allel 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 dviorar(,) (ibpnxk:y*mv ml5k z p ,(j6o;hk0 iagram, all of the bulbs are identical. Which bulb will be the brighte;,py0 x :r)b(,rp 5oom( ikm kh(viz*vl6ja knst?


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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 ad xkgz9(ut ,kac)63vjnd three resistors are connected as shown. With the switch open as shown iu( k9 ,j kvgca)x6t3dzn 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 idedr zyocd+/yswe+7pbf04 d1 u( al ammeter, a switch and three resistors are connected as shown. With the swi7sb /d+yfd(1epw4 y0 +zcuor dtch 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 resistors are conc;)q itk*mh)j brg41zqm(i e7vl8 k* snected as shown. With the switch open as shown in the diagr8(q l ghc*mk*stvrbq7mi1k4j i )e);zam 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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