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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, aneqlvo y f)e8-m;dsu :3 electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the directiovy3;e8ud -fm eq)o:lsn 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 are2re9t.sdei j-u ydusm91:/ae connected in parallel, the_________each resistor is se e/yd2 9mt9:dra -u es.iu1jthe 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 wirevqb*16ht: c jx of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb r:hqbt cv* j1x6emain 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 dgz 4+ cqsz(;-tj5a0 xsf-nyois the ac+ ys-o5nc0dsafzqxt 4; jg(-zronym 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 length L and cross-sectional area A1i wiwon.0 q5f4xvm4jry 4mq(. It is to be placed into a circuit, but it first must be cut in half so that the new lengt.w 4v no0x qmj4415i(mwfyi qrh 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 sas (-7gb6py 7lym:8us8ugejhr mz za*-me material. Wire II has twice the diameter and twice the length of I. If I has resistance R, Isg76 h* pmresy8g-zm-lbuyj 8(azu7:I 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 the48nwy+ 6c;.7fy hxbli8fxn is diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have 48yxnfifnc;l yb7hx + i6s8.w 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 bu-o2 5 tnalpyd-23epr. This piece of material is tdnp-3pbl5ae 2t2o- y uhen drawn so that 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 bu*mp.;r3cal2 *hoa *qnbk, ldglb. He decides to modify the filament. How should the filament of a lightb* o.lqd,a2h gc**np; rlak3b mulb 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 materi7wx);+.wcuclbydr0w z)a + c qal. The length and radius of each resistc)) bww+0z ayc7 uxcwd+r;q.lor 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, a9a+pci5so 3tugcl) 6sre 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 threlgt soui35)p +s c69cae 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 accompanying qvgf ppzu/)dw7 v/t3qjz;i0( 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 reading istz) fd(qujp7 0 qvwzg//;3 vip 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 vy ton 96uk8z rr),6bbl8k4de bulbs 1, 2, and 3 - ret9488rk 6zk)eobr undvby 6l ,presented 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 righy 40e5 uf8;zn8x9ku :qfxduo *yqm5f ht. If the current in all three resistors is equal, which of the follofnh ;uqk d0fz88f95my4y:5uqx xeo*uwing 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 (+4zxe.ndiifh (0ekkrepresents a simple electric circuit composed of 5 identical lik hedx.+i(f0ek4i (znght bulbs 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 followinngijq71c wycz +-a;e* g statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal res-w c+;qz1j *yega 7nicistances?


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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 bd/t,+hdz jke:)qda.kz p6*k X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the same.j* /6+dzz)k:ea,pq kdhdktb 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 resistor df.eylwidc*b(lp o;0+wrq; 0s +nl7u in 5 seconds once the circuit 0+*dw l.;ls+fe o;0yi(qn dbcur7pwl 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 5 t5bhi6aphjsszo -1- same resistanceh-ts 6 1o-z5bpjs5i ah, 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 circ :5)9)u,gynv jvgbhj cuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltag uby jvh9n :g,)j)vc5ge 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 zbs *(vfifmk8 /v q9j8,oc;n. 5wrd47 oxyknjto a battery. Suppose R1 cfd ios.n(4j/wfv 89kk7 vjx5mqbc 8ro;z ny,*arries 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 Rk efwf8 h1,;+f/qadsn 1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipatna+f,fw; /k1e8dqhs f es 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 v a5xhxsmf0v;0gf(l4hx o m7 .folts. What is the maximum value 7 l.m xah( 0v;54 osmffhxf0xgof the 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 resis8*tp bh cnya,m6.ub 4stance of a 60 watt lightbulb designed to operate at 120 nu s .a hbpm*8,6tyb4cvolts?

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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 yaje+ bp-jf3dr4lf., a 4 ohm resistor that is dissipating 36 watts of powbprdf- j,fe+.j ay3l4er?

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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, 6w,uypq /a,hhb e+( k)2jsdms+00 watt.” In)sw 2ey sqm/,huk(ajbph+d, + 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 circuit k2e 1knh 3ify,containing only three identical 6Ω 1 k3,hkenfyi 2resistors?

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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 tx .9ly/h*iphgok 2 -rzhe following equivalent resistances CANNOT be produced using all three resistorikro*x-9/ 2z.p gl hhys?

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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 differix 9a4 )cufti6ent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different valuesiciau)6ft4 9x 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 re br7aoybz+89s)* 3xrp9pe w ypsistor is connected to a battery, a total power P is 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 battery xywbo*bpa pyz+938 7r9 )ep rsis 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 con8k(2lre5uajl: niysg) n5v.1l8 i mwonected in parallel, the equivalent resistance of the combination is 5Ω . 1( w .yr silli:eul g58kn2a8 njmv)o5Which 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 reg. pcov7 j/*ri2 r xg3+kbq.qosistance of 12Ω when operating at7rqg.. j+oqp/gci 2o*3 bxrk v 120 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 resistor that is h5z2pp qg75sqs 2bg8pdissipating 36 watts of pows5 sqb57q2hpgpg8pz 2er?

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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 q0bbv0f 3zu a5of current when connected to 120 volts. If the price of el5f0qba0 zb3uvectricity 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 cos-e7 dso kf/p9rt to keep a 100W lightbulb lit continuously for 1 year at a rate prsdo f 9/e7k-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 res2uky k 4dazl ;+4e, akec: 2ctzyhieb 780*cmcults in a power of 24.0 W associated with am:0 ze 8by74yk2,;e*iuc4kl2kdcecc +ha zt 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 wl f18g h9gw5bw.clp4owns a computer rated at 500 watts in a 120 V circuit. If all computecgl84.w1fp g5wbh w9lrs are 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,lb */(z0jnw)4r tkz(ue- ae; yknjzq four resistors to form a simple circuit as shown /j-)zen(z0jezb kn4ar*lqwkyt ;u(, 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 connectedvjo xgk68 .4ht to four resistors to form a simple circuit as shown tkhg4vto68 j x.o 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 batter5fkd :rmw +7kcz-qzwau /2 hp)y, an ideal ammeter, a switch and three resistors are connected as shown wdmac:7zzp u q rf)w+h2/kk-5. With the 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 resist1aak 505ec3mct w.r), g qls r;ldyte2ors are connected as shown. With the switch open as shown in the diagram the ,.etlrm2 3adg ce0) kr qat 5ys15wl;cammeter 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 idewf+m*i.xm4 i aal ammeter, a switch and three resistors are connected as shown. With the switch open as shown x*iwai4.m + fmin 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 f;u+i)zr to ,4 z8nk1qe j:wsqright, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all tqkw) ;zs:14jt ,enr qi8uoz+f hree 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 thex2sb9 qpzd 4k5 right with resist dp9x4q2bsk5zances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 j0k re;vjdhn0x :n.r* xi4:sb connected in a combination series and parallel circuit; hrekb.n j sdr:0jxv4n0ix*: 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 combm n(1r 1ulk3mjination series and parallel circuit to a voltage sou1 1mk(l3jmurn rce.
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 jfg wj ., p)o2fm3ue0oare identical. Which bulb will be the pgm w2o ofj,ej30fu.)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 resistors are co vb)7ughwv;84qq8 5zd yf)oyvnnected as shown. With the switcgyzqvhv v8f);b7w5uyq)d8o4 h 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 (q9g+,hb1xzf3 xwm khideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the am(fqk+ zg1mhx,xhbw39 meter 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 l89 r,6ok0lu k*r zjrkresistors are connected as shown. With the switch open as shown in the diagram the ammetllrrjr9,*okkkz u6 08 er reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


参考答案:    
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