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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 th+zs12bxzmpz,c0g:r8m8n . svd giip +e metal resistor connected to the battery. Which one of the following choices best describes the direction1 gm+,npm02.zd8gzvriib+: p xcs 8s z 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_________ea ug+9 ;6u,ha oxd*mthzch resisuuho9 ,xza+t m6ghd;*tor is the 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 a5g y(3w3t80rjr tq jht lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This ha58g3 jrtjy tht(q0 w3rppens 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 rg,1lpg:v o;mare being replaced with LEDs. LED is the acronym fo1g ovlp:;gm, rr 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 crossw6kvd,mj *f5vk r+l6 z-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 ol6krvwkd6 +m f,zvj* l5d 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 tj+dkpp) ;27yr,p a rbpwice the diameter and twice the length of I. If I has resis 7br+2,p;pp yadrkp)j tance 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 t2qz4yt 7 ./lp8.2zkog/:ts iw phejcihe diameter and half the length of wire X. If wirezk il.op:/c i z2sj8ywgp/h.74tet 2q 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 p1um8ra.u 17mwx*rkcu iece of material is then drawn so that it is a cylinder with new l 7mmr.ra8w uxk*uc1u1 ength 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 decj on(qtix;5( gu kj e8+0ymt3pides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at (xpo gjiyt0j t+5mqu ;8(e kn3a 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 lenolau;/pv-- bqavr . a,zh u7k+gth and radius + ;za7a bl ,oa/k.vpuh--rquvof 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 batkk+f)/ wmh ks,tery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a thifwk,k k/h m)+srd 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 voltmetergasrzb mx1h ; 9bs60r9aefky u:i5e:+ in the accompanying circuit diagram has internal resistance 10.0 kW and the zi6u0:ge e1khsxmra b;b +sf :95ya9rammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter 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 to the right. The threekgredd9 t6daw w4)3 z( bulbs 1, 2, and 3 - represented as resistors in the4z(gr6wa )kddetd9w3 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 cwxc3jy*:xn5 +b9f z9wx n+fenircuit at the right. If the current in all three resistors is equal, which of the foll95*nnc fnjxwxbw+z:9+ y xe3 fowing 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 elm35 7wb ksrkqc:qbe)9g,:vming k./ x ectric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs) i.cnb 7xg:sv/bq mq,rk9 w e3mkkg5:)
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 statementsm 76wl b-x6jg upr4ed9 is NOT true concerning the simple circuit shown wherewg4669-x dmbeljp ur7 resistors R1, R2 and R3 are have equal resistances?


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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 babhxj;. 0a que1mufy. 4ttery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are co0aqjh f.; ebxmuuy1.4nnected 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 through the identified 1gt u85sx j)btmc01kzh-.g r zresistor in 5 seconds once the cirt8j.b1zc 1g0m)k h5xuzr gst -cuit 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 hdk b:1q9xbct8 ave the same resistance, which would dic8 q9dt1:xbbkssipate 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 r . 5b :rjd9s7cubcj0zcircuit diagram, the current through the 6.0 Ω resistor is 1.0 A.brj.9czcs 0 b5dj:ur7 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 resistors vpwhy,x dvd8/dn8q/+R1, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 +xn/ dv8vphwd8q ,/y dhas 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 R1, R2 andR3 are connected in parallel(*e ;xt3 slaxy g /(clbg+8mjx;/fegi to a battery. Suppose R1 has 2V across it, R2 = 4Ωxl/lae+ms/b;yxg((*8ge; t cfj x 3gi, 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 wattssq sn;nz -p7nb fzlv4f- ga+4) and 120 volts. What is the maximum valv sbflnf 4;s n4az-p-n )zqg7+ue of 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 resiste. )h3ut-kw ml,b(e uw, *dzgeance of a 60 watt lightbulb designed to operate at 120 vold ,(geh tu, ezel3)u *bk.wm-wts?

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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 curr 16 sdh6t(ihazent flows through a 4 ohm resistor that is dissipating 36 wat(zthi6 hd a61sts 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 press5l9lzthrfpq100ro6c np38 ot clothes is marked "120 volt, 600 watt.” In normal use, the c 563c ool0pz19rh nrt0lptqf8urrent 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 1 o2jmjsjz,9 cby a circuit containing only three identical 6Ω z19mjj, ojs2c 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 10rb79mx7j o kr rz22dv.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three ovm7r2d0kr9r2j bz7xresistors?

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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 dap 9 3di.2 qvdsrfr 9q jv(o6eec.y73hifferent con eo 2h fsvqeapd3(.r yq.d93r769vijc figurations. 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 totalvku6215bj of8kuz(/rl1f fpw power P is dissipated in the circuit. How much total power is dissipated in a circuit if n j1bfo2u1klfv(fuwk /8 p65rzidentical 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 resizrf 2)q-yv7j uf, vmt-stors, having resistance R1 and R2, are connected in parallel, the equivalent resistance 7f vuzmfjvt-)q ,ry-2of the combination 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 whe-twhbc9bw jc 23t8 4czxjy,* xn operating at 120 vo z*c8bwxych 2c ,t9- 4tjxjw3blts. 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 throug ovb(q9ot:+ b(,fp gx ,5biwuth a 4 ohm resistor that is dissipating 36 watts of power?qbbtux 5fpv:, (9botwi g(+ o,

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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 10-(w xkogmcmt8a s :w2hvn3wf2,,vdo3 amperes of current when connected to 120 volts. If ,w8w oxv gk(cm0a,:ts3 d2 wmv-nf2ohthe 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 keenpz(:u zqth.t*g2u)t5dr g b-p a 100W lightbulb lit continuously z-2 pgbz g(d5 :)rn*ht.utqtufor 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 currentv(5/ns4;m b rn5we d,rb9 vubx of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choicesrd4s /(n5 bb vn9 u;bxr5ewv,m 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 at 500 watts std0lrz9/o n79e s(ec in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum numbe9(7 tlec/z osrse9d0n r 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 simi5bwsw+w .uzx/py ++ tple circuit as shown to the rightutw+5w. p+ws+yi/z xb .
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 u* 20t,hbd7w7 xcvkm zm vgv94four resistors to form a simple circuit as shown to the rmvhzw 47 90dx 7,*uk gmtvvcb2ight.
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 threi e5;mnhz w ka :a265u.ica,nge resistors are connected :mw aag .ac niu5;hz en6k,i52as shown. 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 ammeteasu/x;k7e waexs. yt y96s sfcw6a) /8r, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readwwy a a/sfx)8/esyt9a.66esk 7 su x;cs 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 uad b so:pxezh/ 3o6 2:29p+ 9zswrmurthree resistors are connected as shown. With the switc6ossp9rpm3ad29o x zb z+ 2:euwu:h r/h 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 ai-g /wnlq np a1k*ihx fl-01/the right, what is the equivalent resistance? Assume that all w wg ii0nxph-*f/1n- aal/q1l kires 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 reo-d ,eas2 y: lvo8*ts)4na -sypgb5arsistance of the circuit shown to the right with resia)n*segb: s a,8d5oa2 v t sy4r-yopl-stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistora4:o hhy //hkc 1iz2aqs connected in a combination ser/i2haaozhk41:h y/ q cies 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 resistors connected in a e8 9xcht v+/3nsd 2 d f90hidlz:jlb;bcombination series and parallel circuit to a c;l+ evtzj9f93d x8bihbl dn:0d/ h2svoltage 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 i 7h: /cp,b;dmjzx ss/bulbs are identical. Which bulb will be the brightest? c/;ipdsjx z /h:bm,s7


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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 connx,bmpg59)j se9z z .ktected as shown. With the switch open as shown 5 9k,t pzejxbsgz)9.min 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 resistz/j:c-st 7vlrqq*hw 8 ors are connectedtl*w:rj8hqvzc 7- qs/ 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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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 gdg4v4-esgwa / z/js 4) tdp ,e9u.jksare connec/g 4s,sga9.-)p 4zdee 4tjks/vujwg dted as shown. 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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    总分:50分 及格:30分 时间:不限时
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